US2798751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically actuated lock mechanism
Assignee: Individual
•
Filing: 1955-11-23
•
Granted: 1957-07-09
•
Expires: 1975-11-23
Abstract
No abstract record available.
Inventors
- 👤 John E Walden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:52
CPC Classifications
E; E05; E05B; E05B77/00; E05B77/46; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/1006; Y10T292/1007; Y10T292/1014; Y10T292/1021
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-08 | 1961-01-07 | 1961-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-08 | 1965-01-07 | 1965-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-08 | 1969-01-07 | 1969-07-09 | $7700.00 | Window Closed / Lapsed |