Exhaust air valve
Widerby March 19, 1
U.S. patent number D278,079 [Application Number 06/401,131] was granted by the patent office on 1985-03-19 for exhaust air valve. This patent grant is currently assigned to Flakt Aktiebolag. Invention is credited to Lennart Widerby.
| United States Patent | D278,079 |
| Widerby | March 19, 1985 |
Exhaust air valve
Claims
The ornamental design for an exhaust air valve, substantially as shown and described.
| Inventors: | Widerby; Lennart (Jonkoping, SE) |
|---|---|
| Assignee: | Flakt Aktiebolag (Nacka,
SE) |
| Appl. No.: | 06/401,131 |
| Filed: | July 23, 1982 |
Foreign Application Priority Data
| Jan 29, 1982 [DE] | URA 79/82 | |||
| Current U.S. Class: | D23/237 |
| Field of Search: | ;D23/19-22,139 ;251/289,298,299,15 |
References Cited [Referenced By]
U.S. Patent Documents
| 2620673 | December 1952 | Whitcomb |
| 3315585 | April 1967 | Hawkins et al. |
| 3951130 | April 1976 | Lowe |
| 4059045 | November 1977 | McClain |
| 4103495 | August 1978 | Graham |
Assistant Examiner: Wilder; Lynn
Attorney, Agent or Firm: Dann, Dorfman, Herrell and Skillman
Description
FIG. 1 is a perspective view of an exhaust air valve in an open position, showing my new design;
FIG. 2 is a perspective view thereof, in a closed position;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a side elevational view thereof; and
FIG. 5 is a top plan view thereof.
* * * * *
uspto.report is an independent third-party trademark research tool that is not affiliated, endorsed, or sponsored by the United States Patent and Trademark Office (USPTO) or any other governmental organization. The information provided by uspto.report is based on publicly available data at the time of writing and is intended for informational purposes only.
While we strive to provide accurate and up-to-date information, we do not guarantee the accuracy, completeness, reliability, or suitability of the information displayed on this site. The use of this site is at your own risk. Any reliance you place on such information is therefore strictly at your own risk.
All official trademark data, including owner information, should be verified by visiting the official USPTO website at www.uspto.gov. This site is not intended to replace professional legal advice and should not be used as a substitute for consulting with a legal professional who is knowledgeable about trademark law.
| 