US1183464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Secret-door lock.
Assignee: Individual
•
Filing: 1915-09-10
•
Granted: 1916-05-16
•
Expires: 1935-09-10
Abstract
No abstract record available.
Inventors
- 👤 Amasa M Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 03:12
CPC Classifications
E; E05; E05C; E05C19/00; E05C19/06; E05C19/02; E05C19/022; Y; Y10; Y10S; Y10S292/00; Y10S292/04; Y10S292/72; Y10T; Y10T292/00; Y10T292/08; Y10T292/0894; Y10T292/0911; Y10T292/0945; Y10T292/0948
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) | 1919-05-16 | 1919-11-15 | 1920-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1923-05-16 | 1923-11-15 | 1924-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1927-05-16 | 1927-11-15 | 1928-05-16 | $7700.00 | Window Closed / Lapsed |