US2741787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hand sponge cleaner and wringer
Assignee: American Marietta Co
•
Filing: 1951-07-31
•
Granted: 1956-04-17
•
Expires: 1971-07-31
Abstract
No abstract record available.
Inventors
- 👤 Jr Joseph Palma
- 👤 James G Knapp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:40
CPC Classifications
A; A47; A47L; A47L17/00; A47L1/00; A47L1/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1100367A
Cited
GB154660A
Cited
US1502148A
Cited
US2357446A
Cited
CH243064A
Cited
GB623896A
Cited
US2699563A
Cited
FR980240A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-17 | 1959-10-17 | 1960-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-17 | 1963-10-17 | 1964-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-17 | 1967-10-17 | 1968-04-17 | $7700.00 | Window Closed / Lapsed |