PTC ceramic heater
Description
The broken lines shown in the drawings illustrate portions of the PTC ceramic heater that form no part of the claimed design.
Claims
The ornamental design for a PTC ceramic heater, as shown and described.
Referenced Cited
U.S. Patent Documents
D162916 | April 1951 | Wittie |
D167759 | September 1952 | McFarland |
D184481 | February 1959 | Hauser |
D227669 | July 1973 | Mann |
D282101 | January 7, 1986 | Yuen |
D316296 | April 16, 1991 | Lee |
D373414 | September 3, 1996 | Bucher |
D402742 | December 15, 1998 | Chen |
D451179 | November 27, 2001 | Marzynski |
D594959 | June 23, 2009 | Orihara |
D648841 | November 15, 2011 | Lam |
D870256 | December 17, 2019 | Chan |
D884134 | May 12, 2020 | Shin |
D901661 | November 10, 2020 | Riegelsberger |
D901662 | November 10, 2020 | Takei |
D933180 | October 12, 2021 | Chen |
D950032 | April 26, 2022 | Liu |
D996594 | August 22, 2023 | Riegelsberger |
20200096216 | March 26, 2020 | Uhlik |
20210231346 | July 29, 2021 | Florence |
Patent History
Classifications
Current U.S. Class:
Portable (D23/332)