US2569042A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lock control mechanism
Assignee: Individual
•
Filing: 1946-01-12
•
Granted: 1951-09-25
•
Expires: 1966-01-12
Abstract
No abstract record available.
Inventors
- 👤 Waldemar A Endter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:28
CPC Classifications
E; E05; E05B; E05B85/00; E05B85/20; E05B85/24; Y; Y10; Y10S; Y10S292/00; Y10S292/27; Y10T; Y10T292/00; Y10T292/08; Y10T292/1043; Y10T292/1051; Y10T292/1052; Y10T292/1055
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2094413A
Cited
US2231075A
Cited
US2234810A
Cited
US2249018A
Cited
US2299353A
Cited
US2246782A
Cited
US2272167A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-24 | 1955-03-26 | 1955-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-24 | 1959-03-26 | 1959-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-24 | 1963-03-26 | 1963-09-25 | $7700.00 | Window Closed / Lapsed |