Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5690713 | Filter and accessory mount for upright vacuum cleaner exhaust port | Leonard E. Bowerman, Jeffrey P. Chandler, Michael John Kowalski, Carla B. Rogers | 1997-11-25 |
| 5685894 | Filter and accessory mount for upright vacuum cleaner exhaust port | Leonard E. Bowerman, Jeffrey P. Chandler, Michael John Kowalski, Carla B. Rogers | 1997-11-11 |
| 5640740 | Vacuum cleaner | Michael F. Martin, William D. Starr | 1997-06-24 |
| 5638573 | Vacuum cleaner | Michael F. Martin, William D. Starr | 1997-06-17 |