Patent US2960711A successfully refreshed from Google Patents.
US2960711A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mop
Assignee: Individual
•
Filing: 1957-03-07
•
Granted: 1960-11-22
•
Expires: 1977-03-07
Abstract
No abstract record available.
Inventors
- 👤 Milton H Schoenfield
- 👤 Donald B Schoenfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:13
CPC Classifications
A; A47; A47L; A47L13/00; A47L13/10; A47L13/20; A47L13/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US255851A
Cited
US257293A
Cited
US859606A
Cited
US2119646A
Cited
FR58319E
Cited
US2648085A
Cited
US2742661A
Cited
US2744281A
Cited
US2832087A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-22 | 1964-05-23 | 1964-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-22 | 1968-05-23 | 1968-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-22 | 1972-05-23 | 1972-11-22 | $7700.00 | Window Closed / Lapsed |