Patent US1982008A successfully refreshed from Google Patents.
US1982008A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coupling
Assignee: Blackhawk Manufacturing Co
•
Filing: 1934-02-23
•
Granted: 1934-11-27
•
Expires: 1954-02-23
Abstract
No abstract record available.
Inventors
- 👤 Mandl Sigmund
- 👤 Edward M Pfauser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:49
CPC Classifications
B; B25; B25B; B25B23/00; B25B23/0007; B25B23/0035; Y; Y10; Y10T; Y10T403/00; Y10T403/60; Y10T403/602; Y10T403/604
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1937-11-26 | 1938-05-28 | 1938-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-11-26 | 1942-05-28 | 1942-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-11-26 | 1946-05-28 | 1946-11-27 | $7700.00 | Window Closed / Lapsed |