Irwin; Lawrence F.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Irwin; Lawrence F..The latest application filed is for "waste line inspection and clean-out tool".
- Irwin; Lawrence F. - San Fernando CA
- Irwin; Lawrence F. - Sylmar CA
- Irwin; Lawrence F. - Los Angeles CA
- Irwin; Lawrence F. - Bel Air CA
- Irwin; Lawrence F. - Calabasas Park CA
Trademarks
| Patent | Date |
|---|---|
| Waste line inspection and clean-out tool Grant 7,761,948 - Irwin July 27, 2 | 2010-07-27 |
| Waste line inspection and clean-out tool App 20090038093 - Irwin; Lawrence F. | 2009-02-12 |
| Method and apparatus for installing and removing a sink mounted garbage disposer Grant 6,142,460 - Irwin November 7, 2 | 2000-11-07 |
| Transport dolly for lifting and transporting lavatory fixtures Grant 6,135,466 - Irwin October 24, 2 | 2000-10-24 |
| Waste line inspection and clean out device with water jet head Grant 5,996,159 - Irwin December 7, 1 | 1999-12-07 |
| Waste line clean out device with water jet head Grant 5,933,903 - Irwin August 10, 1 | 1999-08-10 |
| Grip handle chuck Grant 5,414,888 - Irwin May 16, 1 | 1995-05-16 |
| Drain cleaning apparatus Grant 5,265,301 - Irwin November 30, 1 | 1993-11-30 |
| Wasteline cleanout apparatus Grant 5,193,242 - Irwin March 16, 1 | 1993-03-16 |
| Resuscitation device Grant 4,942,873 - Irwin , et al. July 24, 1 | 1990-07-24 |
| Backflow prevention device Grant 4,870,992 - Irwin , et al. October 3, 1 | 1989-10-03 |
| Ground line fault interrupter adapter unit Grant 4,816,957 - Irwin March 28, 1 | 1989-03-28 |
| Sewer cleanout apparatus Grant D298,071 - Irwin October 11, 1 | 1988-10-11 |
| Waste line cleanout apparatus Grant 4,686,732 - Irwin August 18, 1 | 1987-08-18 |
| Pipe cleaning machine Grant 4,611,360 - Irwin September 16, 1 | 1986-09-16 |
| Impact device Grant 4,542,543 - Irwin September 24, 1 | 1985-09-24 |
| Locking coupling Grant 4,508,468 - Irwin April 2, 1 | 1985-04-02 |
| Spring feeding mechanism Grant 4,395,791 - Irwin August 2, 1 | 1983-08-02 |
| Pipe cleanout tool Grant 4,364,140 - Irwin December 21, 1 | 1982-12-21 |
| Grip handle chuck Grant 4,361,924 - Irwin December 7, 1 | 1982-12-07 |
| Hydraulically actuated apparatus Grant 4,285,126 - Irwin August 25, 1 | 1981-08-25 |
| Pipe cleaning machine Grant 3,958,293 - Irwin May 25, 1 | 1976-05-25 |
| Plumbers snake Grant 3,950,934 - Irwin April 20, 1 | 1976-04-20 |
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