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Class Information
Number: 55/385.8
Name: Gas separation > Combined or convertible > Involving ash tray
Description: Apparatus associated with an ash tray.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6523544 |
Fan-assisted ashtray |
Feb. 25, 2003 |
| 6471754 |
Purification system for tobacco-generated secondhand smoke |
Oct. 29, 2002 |
| 6156088 |
Pure air system |
Dec. 5, 2000 |
| 6039776 |
Cleaning device for avoiding dissipation of polluted air due to smoking |
Mar. 21, 2000 |
| 5908479 |
Filter device to reduce cigarette smoke |
Jun. 1, 1999 |
| RE36106 |
Smokeless ashtray |
Feb. 23, 1999 |
| 5848595 |
Cigarette package with ashtray |
Dec. 15, 1998 |
| 5758387 |
Vacuum ashtray system |
Jun. 2, 1998 |
| 5649997 |
Air vacuum apparatus |
Jul. 22, 1997 |
| 5591242 |
Smoke processor |
Jan. 7, 1997 |
| 5562286 |
Casino gaming table having a ventilating device for removing smoke |
Oct. 8, 1996 |
| 5542438 |
Smokeless ashtray system |
Aug. 6, 1996 |
| 5325876 |
Ashtray with ozone generator and catalytic exchanger |
Jul. 5, 1994 |
| 5300139 |
Air cleaner with a build-in ashtray |
Apr. 5, 1994 |
| 5259400 |
Smokeless ashtray |
Nov. 9, 1993 |
| 5181883 |
Smoker's booth |
Jan. 26, 1993 |
| 5160518 |
Second chance secondary smoke trap |
Nov. 3, 1992 |
| 5088508 |
Apparatus and method for eliminating cigarette sidestream smoke |
Feb. 18, 1992 |
| 5085134 |
Smoker's booth |
Feb. 4, 1992 |
| 4867764 |
Convertible air cleaner fan |
Sep. 19, 1989 |
| 4671300 |
Smokeless ashtray |
Jun. 9, 1987 |
| 4623367 |
Smoke-free work area |
Nov. 18, 1986 |
| 4580582 |
Smokeless ashtray |
Apr. 8, 1986 |
| 4148618 |
Ashtray |
Apr. 10, 1979 |
| 4119419 |
Smoke controlling ash tray |
Oct. 10, 1978 |
| 4043776 |
Smoke sorbing device |
Aug. 23, 1977 |
| 3958965 |
Ash tray with smoke filter |
May. 25, 1976 |
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