Patent US1956388A successfully refreshed from Google Patents.
US1956388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Doorlock
Assignee: Individual
•
Filing: 1934-01-23
•
Granted: 1934-04-24
•
Expires: 1954-01-23
Abstract
No abstract record available.
Inventors
- 👤 Kalina Loeser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:22
CPC Classifications
E; E05; E05B; E05B13/00; E05B13/002; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/1014; Y10T292/1022; Y10T292/1028; Y10T292/96; Y10T70/00; Y10T70/70; Y10T70/7441; Y10T70/7915
Claims Analysis
Total Claims: 0
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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) | 1937-04-23 | 1937-10-23 | 1938-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-04-23 | 1941-10-23 | 1942-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-04-23 | 1945-10-23 | 1946-04-24 | $7700.00 | Window Closed / Lapsed |