US1887655A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Doorlock operator
Assignee: HANCOCK Manufacturing CO
•
Filing: 1930-03-14
•
Granted: 1932-11-15
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Expires: 1950-03-14
Abstract
No abstract record available.
Inventors
- 👤 Marple Rollo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:25
CPC Classifications
E; E05; E05B; E05B85/00; E05B85/10; E05B85/12; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17761; Y10T279/17786; Y10T292/00; Y10T292/85; Y10T292/869; Y10T403/00; Y10T403/70; Y10T403/7026; Y10T403/7033
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) | 1935-11-15 | 1936-05-16 | 1936-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-11-15 | 1940-05-16 | 1940-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-11-15 | 1944-05-16 | 1944-11-15 | $7700.00 | Window Closed / Lapsed |