IP Library Granted Patent US 1,097,155
Granted Patent S1
US 1,097,155 · App. 29/918,894 · Granted Oct 7, 2025

Handle for dental instrument

Inventors: Erin Baumstark (Chicago, IL); James Stango (Chicago, IL)
Assignee: HU-FRIEDY MFG. CO., LLC
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Quick Facts
Patent No.
US 1,097,155
App. No.
29/918,894
Granted
Oct 7, 2025
Kind
S1
Claims (1)

The ornamental design for a handle for dental instrument, as shown and described.

Assignments (2)
PATENT SECURITY AGREEMENT Recorded May 31, 2024
From: HU-FRIEDY MFG. CO., LLC; CROSSTEX INTERNATIONAL, INC.; SPS MEDICAL SUPPLY CORP.
To: ARES CAPITAL CORPORATION, AS COLLATERAL AGENT
Reel/Frame 067594/0116 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 14, 2023
From: BAUMSTARK, ERIN; STANGO, JAMES
To: HU-FRIEDY MFG. CO., LLC
Reel/Frame 066000/0803 →
Continuity (2)
Division 29845195 · Jul 5, 2022
Division 29739798 · Jun 29, 2020
References Cited (43)
US D259660S · Sosnay · 1981 [cited by applicant]
US D336517S · McKeown · 1993 [cited by applicant]
US D394902S · Herbst et al. · 1998 [cited by applicant]
US 5816806A · Herbst et al. · 1998 [cited by applicant]
US D425202S · Hammond et al. · 2000 [cited by applicant]
US D428652S · Frezel et al. · 2000 [cited by applicant]
US D430298S · Holms · 2000 [cited by applicant]
US 6109918A · Hammond et al. · 2000 [cited by applicant]
US 6193515B1 · Rahman · 2001 [cited by applicant]
US D446858S · Holms · 2001 [cited by examiner]
US 6322362B1 · Holms · 2001 [cited by applicant]
US 6361317B1 · Rahman · 2002 [cited by applicant]
US 6729877B2 · Rahman · 2004 [cited by applicant]
US 8241291B2 · Yamada · 2012 [cited by applicant]
US D729935S · Gu · 2015 [cited by applicant]
US D754345S · Gu · 2016 [cited by applicant]
US D764665S · Luoto · 2016 [cited by examiner]
US D790061S · Gu · 2017 [cited by applicant]
US D805641S · Gu · 2017 [cited by applicant]
US D809138S · Khan · 2018 [cited by examiner]
US D839426S · Bajwa · 2019 [cited by applicant]
US D857886S · Zepf · 2019 [cited by examiner]
US 10646305B2 · Lee et al. · 2020 [cited by applicant]
US D888241S · Bajwa · 2020 [cited by examiner]
US D918390S · Ollivier · 2021 [cited by examiner]
US 11219994B2 · Wink et al. · 2022 [cited by applicant]
US D960370S · Baumstark et al. · 2022 [cited by applicant]
US D1016287S · Baumstark · 2024 [cited by examiner]
US D1034998S · Waseem · 2024 [cited by examiner]
US D1042836S · Sajid · 2024 [cited by examiner]
US 20060084032A1 · Tipton et al. · 2006 [cited by applicant]
US 20060257820A1 · Davis · 2006 [cited by applicant]
US 20100184001A1 · Beach · 2010 [cited by examiner]
US 20160228221A1 · Cho · 2016 [cited by examiner]
US 20180064513A1 · Fatiny · 2018 [cited by examiner]
US 20180235727A1 · Rubino · 2018 [cited by examiner]
US 20200237485A1 · Pineyro et al. · 2020 [cited by applicant]
Cynamed Ligature Director Double Ended Hollow Handle, posted Mar. 3, 2015 [online], [retrieved Jan. 30, 2025]. Retrieved from internet, https://www.amazon.com/dp/B00U6S7JW8 (Year: 2025). [cited by examiner]
Hu-Friedy MH6 Cone Socket Mirror Handle, posted Mar. 9, 2016 [online], [retrieved Jan. 30, 2025]. Retrieved from internet, https://www.amazon.com/dp/B00TIMBEH4/ (Year: 2025). [cited by examiner]
Nifty Medical Supplies Mirror Handle Hollow, posted Jul. 10, 2015 [online], [retrieved Jan. 30, 2025]. Retrieved from internet, https://www.amazon.com/dp/B011D9DLL6/ (Year: 2025). [cited by examiner]
Osung Dental Sickle Scaler, posted Oct. 12, 2019 [online], [retrieved Jan. 30, 2025]. Retrieved from internet, https://www.amazon.ca/dp/B079HZRCWD (Year: 2025). [cited by examiner]
Restriction Requirement for Design U.S. Appl. No. 29/739,798, dated Jan. 26, 2022. [cited by applicant]
Restriction Requirement for Design Application No. 29/845,195, dated Jul. 25, 2023. [cited by applicant]