Westergren; George A.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Westergren; George A..The latest application filed is for "key system for vacuum cleaner hose connection".
- Westergren; George A. - Linwood Township Anaka County
- Westergren; George A. - Whitebear Lake MN
- Westergren; George A. - White Bear Lake MN
| Patent | Date |
|---|---|
| Key system for vacuum cleaner hose connection Grant 4,940,415 - Westergren July 10, 1 | 1990-07-10 |
| Vacuum cleaner electrical connector mount Grant 4,787,117 - Westergren November 29, 1 | 1988-11-29 |
| Vacuum cleaner bag mount and method for mounting a dust bag thereon Grant 4,738,697 - Westergren April 19, 1 | 1988-04-19 |
| Vacuum cleaner with operating condition indicator system Grant 4,733,430 - Westergren March 29, 1 | 1988-03-29 |
| Canister Vacuum Cleaner Latching Means Grant 3,812,659 - Westergren , et al. May 28, 1 | 1974-05-28 |
| Vacuum Cleaner Implement Tray Grant 3,778,863 - Westergren , et al. December 18, 1 | 1973-12-18 |
| Handle Interlock For Canister Vacuum Cleaner Grant 3,766,594 - Westergren , et al. October 23, 1 | 1973-10-23 |
| Shag Rug Cleaning Tool For Use With Vacuum Cleaners Grant 3,739,422 - Johnson , et al. June 19, 1 | 1973-06-19 |
| Vacuum Cleaner Grant 3,675,399 - Westergren July 11, 1 | 1972-07-11 |
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