IP Library › Granted Patent US 1,074,982
Granted Patent S1
US 1,074,982 · App. 35/518,501 · Granted May 13, 2025

Warped plate for ventilation duct

Inventor: Henrik T. Witt (Hamburg, DE)
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 1,074,982
App. No.
35/518,501
Granted
May 13, 2025
Kind
S1
Claims (1)

The ornamental design for a warped plate for ventilation duct, as shown and described.

References Cited (18)
US 44349A · Sinclair · 1864 [cited by examiner]
US 809304A · Isham · 1906 [cited by examiner]
US 1044044A · Hardesty · 1912 [cited by examiner]
US 1808450A · Burgess · 1931 [cited by examiner]
US 3165052A · Brinen · 1965 [cited by examiner]
US D262398S · Syme · 1981 [cited by examiner]
US D273702S · Widerby · 1984 [cited by examiner]
US 5199190A · Mayer · 1993 [cited by examiner]
US D417498S · Meyer · 1999 [cited by examiner]
US D881685S · Witherbee · 2020 [cited by examiner]
US D895100S · Nielson · 2020 [cited by examiner]
US 20050109415A1 · Snyder · 2005 [cited by examiner]
US 20100072746A1 · Jensen · 2010 [cited by examiner]
US 20120118997A1 · Lin · 2012 [cited by examiner]
US 20180051902A1 · Noriega · 2018 [cited by examiner]
US 20200408229A1 · Harman · 2020 [cited by examiner]
Assembling HVAC round gore elbow, Oct. 5, 2017, YouTube, site visited Oct. 9, 2024: https://www.youtube.com/watch?v=MsfEaTgOqnE (Year: 2017). [cited by examiner]
Sheet Metal Machines part 3, Jan. 23, 2022, YouTube, site visited Oct. 9, 2024: https://www.youtube.com/watch?v=61gvBslxB5E (Year: 2022). [cited by examiner]