US2961786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Advertising standard
Assignee: Mathews Co
•
Filing: 1956-08-22
•
Granted: 1960-11-29
•
Expires: 1976-08-22
Abstract
No abstract record available.
Inventors
- 👤 Lowmaster William James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:40
CPC Classifications
G; G09; G09F; G09F15/00; G09F15/0006; G09F15/0056; G09F15/0062
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US649402A
Cited
US1115021A
Cited
US1135241A
Cited
US1284624A
Cited
US1513446A
Cited
US1624900A
Cited
GB373710A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-29 | 1964-05-30 | 1964-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-29 | 1968-05-30 | 1968-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-29 | 1972-05-30 | 1972-11-29 | $7700.00 | Window Closed / Lapsed |