US1077877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit-closing device for doors.
Assignee: Individual
•
Filing: 1913-03-07
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Granted: 1913-11-04
•
Expires: 1933-03-07
Abstract
No abstract record available.
Inventors
- 👤 William Hubert Fitch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:41
CPC Classifications
H; H01; H01H; H01H13/00; H01H13/02; H01H13/12; H01H13/14; H01H13/18; H01H13/183; Y; Y10; Y10S; Y10S292/00; Y10S292/23; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/1014; Y10T292/1022; Y10T292/1028
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) | 1916-11-03 | 1917-05-05 | 1917-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1920-11-03 | 1921-05-05 | 1921-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1924-11-03 | 1925-05-05 | 1925-11-04 | $7700.00 | Window Closed / Lapsed |