US3024452A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-digit electrical door lock
Assignee: TDK Micronas GmbH
•
Filing: 1958-08-22
•
Granted: 1962-03-06
•
Expires: 1978-08-22
Abstract
No abstract record available.
Inventors
- 👤 Edward J Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:06
CPC Classifications
G; G07; G07C; G07C9/00; G07C9/00174; G07C9/00658; G07C9/00674; G07C9/0069; G08; G08B; G08B13/00; G08B13/22; Y; Y10; Y10T; Y10T70/00; Y10T70/70; Y10T70/7051; Y10T70/7062; Y10T70/7068
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB197503A
Cited
US1685329A
Cited
US1923968A
Cited
US2250828A
Cited
US2424243A
Cited
US2436809A
Cited
US2563127A
Cited
US2855588A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-05 | 1965-09-04 | 1966-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-05 | 1969-09-04 | 1970-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-05 | 1973-09-04 | 1974-03-06 | $7700.00 | Window Closed / Lapsed |