US2852973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Key and key bar
Assignee: Wurlitzer Co
•
Filing: 1953-06-30
•
Granted: 1958-09-23
•
Expires: 1973-06-30
Abstract
No abstract record available.
Inventors
- 👤 Jr Michael J Corbett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:14
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/32; G10H1/34; G10C; G10C3/00; G10C3/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2514978A
Cited
US1840712A
Cited
US2260412A
Cited
US2253782A
Cited
US2340050A
Cited
US2567870A
Cited
US2495913A
Cited
US2558659A
Cited
US2612812A
Cited
US2630503A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-22 | 1962-03-24 | 1962-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-22 | 1966-03-24 | 1966-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-22 | 1970-03-24 | 1970-09-23 | $7700.00 | Window Closed / Lapsed |