IP Library Granted Patent US 1,129,727
Granted Patent S1
US 1,129,727 · App. 29/944,410 · Granted Jun 9, 2026

Circumaural cushion for hearing protection

Inventors: Allan Schrader (Lake Oswego, OR); Brian David Frost (Lake Oswego, OR)
Assignee: Lightspeed Aviation, Inc.
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 1,129,727
App. No.
29/944,410
Granted
Jun 9, 2026
Kind
S1
Claims (1)

The ornamental design for a circumaural cushion for hearing protection, as shown and described.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 28, 2024
From: SCHRADER, ALLAN; FROST, BRIAN DAVID
To: LIGHTSPEED AVIATION, INC.
Reel/Frame 067541/0917 →
Continuity (1)
Continuation In Part 17979409 · Nov 2, 2022
References Cited (78)
US 177755A · Sedgwick · 1876 [cited by examiner]
US 346175A · Shelby · 1886 [cited by examiner]
US 2241736A · Reinemer · 1941 [cited by examiner]
US 2378398A · Fiedler · 1945 [cited by examiner]
US 2545552A · Leeming · 1951 [cited by examiner]
US 2582907A · Kaufmann · 1952 [cited by examiner]
US D166313S · Hussey · 1952 [cited by examiner]
US 2801423A · Shaw et al. · 1957 [cited by applicant]
US 2844820A · Austin et al. · 1958 [cited by applicant]
US 2990553A · Ulrich et al. · 1961 [cited by applicant]
US 3073410A · Gongoll et al. · 1963 [cited by applicant]
US 3085253A · Ulrich et al. · 1963 [cited by applicant]
US 3525103A · Yonan · 1970 [cited by examiner]
US 3535710A · Aileo · 1970 [cited by applicant]
US D224583S · Hames · 1972 [cited by examiner]
US 3810525A · Crenna · 1974 [cited by applicant]
US 3953114A · Bidgood · 1976 [cited by examiner]
US 4302635A · Jacobsen et al. · 1981 [cited by applicant]
US D267286S · Anderie · 1982 [cited by examiner]
US 4574912A · Fuss et al. · 1986 [cited by applicant]
US 4713843A · Duncan · 1987 [cited by examiner]
US D344611S · Hordis · 1994 [cited by examiner]
US 5898945A · Weiser · 1999 [cited by examiner]
US 6091825A · Minkofski · 2000 [cited by applicant]
US D434877S · Harral · 2000 [cited by examiner]
US 6163615A · Callahan · 2000 [cited by applicant]
US 6278786B1 · McIntosh · 2001 [cited by applicant]
US 6466681B1 · Siska, Jr. et al. · 2002 [cited by applicant]
US 7210173B2 · Bavetta et al. · 2007 [cited by applicant]
US 7444687B2 · Sato et al. · 2008 [cited by applicant]
US D594601S · Briggs · 2009 [cited by examiner]
US D620645S · Russo · 2010 [cited by examiner]
US 7853034B1 · Gresko · 2010 [cited by applicant]
US 7865974B1 · Heller · 2011 [cited by examiner]
US 8358799B1 · Gresko et al. · 2013 [cited by applicant]
US 8428274B2 · Shiraishi et al. · 2013 [cited by applicant]
US D687189S · Fairclough · 2013 [cited by examiner]
US D691331S · Copeland · 2013 [cited by examiner]
US 8971562B2 · Clayton et al. · 2015 [cited by applicant]
US 9417838B2 · Baalu · 2016 [cited by examiner]
US 9445182B2 · Pizzaro et al. · 2016 [cited by applicant]
US D769537S · Dexter · 2016 [cited by examiner]
US 9473844B2 · Horikawa · 2016 [cited by examiner]
US D777989S · Gerspach · 2017 [cited by examiner]
US D814457S · Willis · 2018 [cited by examiner]
US D815615S · Wernblad · 2018 [cited by examiner]
US 10104929B2 · Schrader et al. · 2018 [cited by applicant]
US D860972S · Minarsch · 2019 [cited by examiner]
US 10500098B2 · Mydell · 2019 [cited by examiner]
US D886802S · Willis · 2020 [cited by examiner]
US D891397S · Zeng · 2020 [cited by examiner]
US 10885927B2 · Goldstein · 2021 [cited by applicant]
US D913598S · Jesper · 2021 [cited by examiner]
US D956363S · Hu · 2022 [cited by examiner]
US 11368782B2 · Schrader et al. · 2022 [cited by applicant]
US 11707210B2 · Brown et al. · 2023 [cited by applicant]
US D995475S · Akana · 2023 [cited by examiner]
US D1000414S · Wan · 2023 [cited by examiner]
US 11902730B2 · Larsen · 2024 [cited by examiner]
US D1018497S · Schillebeeckx · 2024 [cited by examiner]
US D1035162S · Qiu · 2024 [cited by examiner]
US D1041772S · Liang · 2024 [cited by examiner]
US D1076239S · Ben · 2025 [cited by examiner]
US 20040154082A1 · Saffran · 2004 [cited by examiner]
US 20100119076A1 · Monk et al. · 2010 [cited by applicant]
US 20110002475A1 · Kimura · 2011 [cited by applicant]
US 20150281828A1 · Horikawa · 2015 [cited by applicant]
US 20160095376A1 · Schrader et al. · 2016 [cited by applicant]
US 20170230744A1 · Schrader et al. · 2017 [cited by applicant]
GB 2061174 · 1997 [cited by examiner]
Honeywell Howard Leight Replacement Ear Muff Pad Kit: 25 dB NRR,https://www.grainger.com/product/6TUK9?gucid=N:N:FPL:Free:GGL:CSM-1946:tew63h3:20501231. 2025. (Year: 2025). [cited by examiner]
Earmuff Cushion Replacements for MRI-Safe Noise Reduction Headphones and Hearing Protective Earmuffs,https://scansound.com/earmuff-cushion-replacements-for-mri-safe-noise-reduction-headphones-and-hearing-protective-earm… [cited by examiner]
Prohear GEP02 Gel Ear Pads for Howard Leight by Honeywell Impact Sport Pro Sync Leightning Earmuffs,https://www.amazon.com/PROHEAR-Howard-Leight-Honeywell-Earmuffs/dp/B0822RGZH8?source=ps-sl-shoppingads-Ipcontext&ref_=f… [cited by examiner]
Boat Rockers 510 Wireless Bluetooth Headphone; Downloaded Oct. 9, 2024 <https://www.amazon.com/Rockerz-510-Wireless-Bluetooth-Hedphone/dp/B06Y5LK5QJ/ref=cm_cr_arp_d_product_top?ie=UTF8>. [cited by applicant]
Rog Delta S Wireless; Downloaded Oct. 9, 2024 <https://rog.asus.com/us/headsets-audio/headsets/wireless-headsets/rog-delta-s-wireless-model/>. [cited by applicant]
Phiaton Bridge MS 500 Headphones; downloaded Oct. 9, 2024 <https://www.audioholics.com/headphone-reviews/phiaton-bridge-ms-500>. [cited by applicant]
V Moda; downloaded on Oct. 9, 2024 <https://www.v-moda.com/us/en/products/m200-anc>. [cited by applicant]
Non-Final Office Action dated Dec. 12, 2024 for related U.S. Appl. No. 17/979,409; 21 pages. [cited by applicant]