US2946080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suction operated floor and rug conditioning and cleaning tool
Assignee: Individual
•
Filing: 1956-06-26
•
Granted: 1960-07-26
•
Expires: 1976-06-26
Abstract
No abstract record available.
Inventors
- 👤 Willie D Burch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:54
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4036; A47L11/4041; A47L11/02; A47L11/20; A47L11/204; A47L11/4044; A47L11/4052; A47L11/4058; A47L11/4063; A47L11/4069; A47L11/4075; A47L11/4094
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US983988A
Cited
US1261453A
Cited
US1392210A
Cited
US2107571A
Cited
US2089232A
Cited
US2246036A
Cited
US2683276A
Cited
US2744272A
Cited
CH299281A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-26 | 1964-01-25 | 1964-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-26 | 1968-01-25 | 1968-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-26 | 1972-01-25 | 1972-07-26 | $7700.00 | Window Closed / Lapsed |