IP Library › Granted Patent US 1,124,522
Granted Patent S1
US 1,124,522 · App. 29/850,171 · Granted Apr 28, 2026

Hard hat

Inventor: Scott Michael Cline (Menomonee Falls, WI)
Assignee: Milwaukee Electric Tool Corporation
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 1,124,522
App. No.
29/850,171
Granted
Apr 28, 2026
Kind
S1
Claims (1)

The ornamental design for a hard hat as shown and described.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 11, 2023
From: CLINE, SCOTT MICHAEL
To: MILWAUKEE ELECTRIC TOOL CORPORATION
Reel/Frame 062344/0961 →
References Cited (59)
US D198776S · Simpson et al. · 1964 [cited by examiner]
US D228264S · Potter · 1973 [cited by applicant]
US 3829900A · Marangoni · 1974 [cited by applicant]
US 3877076A · Summers et al. · 1975 [cited by applicant]
US D370308S · Nilsson · 1996 [cited by applicant]
US D468062S · Santiago · 2002 [cited by examiner]
US D475161S · Mundy · 2003 [cited by examiner]
US D589561S · Miljanic · 2009 [cited by examiner]
US D648899S · Westerdal · 2011 [cited by applicant]
US D667590S · Williams · 2012 [cited by applicant]
US D670034S · Kolodziej · 2012 [cited by examiner]
US 8533869B1 · Capuano · 2013 [cited by applicant]
US D695460S · Slater et al. · 2013 [cited by applicant]
US D705492S · Zhu et al. · 2014 [cited by applicant]
US D708792S · Aaskov et al. · 2014 [cited by applicant]
US 8763166B1 · Olivares Velasco · 2014 [cited by applicant]
US 8898818B1 · Whitcomb · 2014 [cited by applicant]
US D742596S · Peng · 2015 [cited by applicant]
US D742597S · Peng · 2015 [cited by examiner]
US D742598S · Peng · 2015 [cited by examiner]
US D742599S · Peng · 2015 [cited by examiner]
US D743106S · Peng · 2015 [cited by examiner]
US D743629S · Peng · 2015 [cited by examiner]
US D743630S · Peng · 2015 [cited by examiner]
US D748866S · Tutor · 2016 [cited by applicant]
US D756038S · Yang · 2016 [cited by examiner]
US D756568S · Scanlon · 2016 [cited by examiner]
US D771321S · Sanchez · 2016 [cited by examiner]
US D779127S · Sanchez · 2017 [cited by examiner]
US D782116S · Sanchez · 2017 [cited by applicant]
US D846809S · Shimano · 2019 [cited by examiner]
US D846810S · Akrapovic · 2019 [cited by examiner]
US D897045S · Malloy · 2020 [cited by examiner]
US D899696S · Corcoran · 2020 [cited by examiner]
US D903945S · Padgett et al. · 2020 [cited by applicant]
US 10856599B1 · Cuenca · 2020 [cited by examiner]
US D933303S · Ho · 2021 [cited by applicant]
US D956358S · Squiers et al. · 2022 [cited by applicant]
US 12336587B2 · Adams · 2025 [cited by examiner]
US D1087537S · Shi · 2025 [cited by examiner]
US D1094898S · Shi · 2025 [cited by examiner]
US 20170367433A1 · Frett · 2017 [cited by applicant]
US 20200128901A1 · Axelsson et al. · 2020 [cited by applicant]
US 20200253311A1 · Niedermeyer · 2020 [cited by examiner]
US 20200345097A1 · Castiglione · 2020 [cited by examiner]
US 20210212406A1 · Hort · 2021 [cited by examiner]
US 20220047883A1 · Dietz · 2022 [cited by examiner]
US 20220386730A1 · Agustsson · 2022 [cited by examiner]
US 20230157398A1 · Lombardi · 2023 [cited by examiner]
CN 304124732 · 2017 [cited by applicant]
WO WOD204924001 · 2019 [cited by applicant]
Milwaukee Bolt100 White Vented Safety Helmet (online), dated Nov. 8, 2024. Retrieved from Internet Jun. 30, 2025, URL: https://web.archive.org/web/20241108105937/https://its.co.uk/pd/milwaukee-bolt100-white-vented-safet… [cited by examiner]
3M Hard Hat, available in Amazon.com, date first available Aug. 28, 2012 [online], [site visited Mar. 8, 2022], Available from the internet URL: https://www.amazon.com/dp/B0081JT7LK/ref=cm_sw_em_r_mt_dp_PH18MY0D0J948RT7… [cited by applicant]
Amston Safety Hard Hat, available in Amazon.com, date first available Aug. 23, 2019 [online], [site visited Mar. 8, 2022], Available from the internet URL: https://www.amazon.com/dp/B07WXHWQ8B/ref=cm_sw_em_r_mt_dp_VM1CW… [cited by applicant]
Malta Dynamics 4 pt Suspension Hard Hat, available in Amazon.com, date first available May 4, 2017 [online], [site visited Mar. 8, 2022], Available from the internet URL: https://www.amazon.com/dp/B072F45C5Q/ref=cm_sw_e… [cited by applicant]
Milwaukee, Full Brim Hard Hat, https://www.milwaukeetool.com/Products/Safety-Solutions/Personal-Protective-Equipment/Head-Protection/Full-Brim-Hard-Hat, commercially available prior to Aug. 17, 2022, 12 pages. [cited by applicant]
Milwaukee, Front Brim Hard Hat, https://www.milwaukeetool.com/Products/Safety-Solutions/Personal-Protective-Equipment/Head-Protection/Front-Brim-Hard-Hat, commercially available prior to Aug. 17, 2022, 10 pages. [cited by applicant]
Milwaukee, Safety Helmet (USA)—Type 2, https://www.milwaukeetool.com/Products/Safety-Solutions/Personal-Protective-Equipment/Head-Protection/Safety-Helmet, commercially available prior to Aug. 17, 2022, 12 pages. [cited by applicant]
Milwaukee, Front Brim Safety Helmet (USA)—Type 2, https://www.milwaukeetool.com/Products/Safety-Solutions/Personal-Protective-Equipment/Head-Protection/Front-Brim-Safety-Helmet, commercially available prior to Aug. 17, … [cited by applicant]