US1565713A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door-locking device
Assignee: Individual
•
Filing: 1924-03-07
•
Granted: 1925-12-15
•
Expires: 1944-03-07
Abstract
No abstract record available.
Inventors
- 👤 Christiansen Niels
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:29
CPC Classifications
E; E05; E05C; E05C17/00; E05C17/02; E05C17/04; E05C17/12; E05C17/16; E05C17/166; Y; Y10; Y10T; Y10T292/00; Y10T292/28; Y10T292/285
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) | 1928-12-14 | 1929-06-15 | 1929-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-12-14 | 1933-06-15 | 1933-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-12-14 | 1937-06-15 | 1937-12-15 | $7700.00 | Window Closed / Lapsed |