US2931953A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetically controlled lock and switch
Assignee: CARROLL CONKLIN
•
Filing: 1954-06-22
•
Granted: 1960-04-05
•
Expires: 1974-06-22
Abstract
No abstract record available.
Inventors
- 👤 Barney Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:44
CPC Classifications
H; H01; H01H; H01H27/00; Y; Y10; Y10T; Y10T70/00; Y10T70/70; Y10T70/7051; Y10T70/7057; Y10T70/7441; Y10T70/7757; Y10T70/778; Y10T70/7791; Y10T70/7904
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2121301A
Cited
US2474365A
Cited
US2473664A
Cited
US2546344A
Cited
US2595769A
Cited
US2518635A
Cited
US2561076A
Cited
US2648729A
Cited
US2769873A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-05 | 1963-10-05 | 1964-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-05 | 1967-10-05 | 1968-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-05 | 1971-10-05 | 1972-04-05 | $7700.00 | Window Closed / Lapsed |