US3491395A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power sweeper with main broom
Assignee: Cooper Industries LLC
•
Filing: 1967-10-24
•
Granted: 1970-01-27
•
Expires: 1987-10-24
Abstract
No abstract record available.
Inventors
- 👤 William Mccandless
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:51
CPC Classifications
E; E01; E01H; E01H1/00; E01H1/02; E01H1/04; E01H1/045; E01H1/08; E01H1/0827; E01H1/0854; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20582; Y10T74/2063
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1861681A
Cited
US2236814A
Cited
US2330025A
Cited
US2897527A
Cited
US2972159A
Cited
US3059490A
Cited
US3284830A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-26 | 1973-07-28 | 1974-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-26 | 1977-07-28 | 1978-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-26 | 1981-07-28 | 1982-01-27 | $7700.00 | Window Closed / Lapsed |