Patent US1877836A successfully refreshed from Google Patents.
US1877836A
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Doorlocking device
Assignee: Ternstedt Manufacturing Co
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Filing: 1929-07-20
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Granted: 1932-09-20
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Expires: 1949-07-20
Abstract
No abstract record available.
Inventors
- 👤 John B Flynn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:47
CPC Classifications
E; E05; E05B; E05B83/00; E05B83/36; Y; Y10; Y10S; Y10S292/00; Y10S292/24; Y10S292/65; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/0969; Y10T292/097; Y10T292/0977; Y10T292/0978; Y10T292/0982; Y10T292/0983; Y10T292/1014; Y10T292/1022; Y10T292/1023
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) | 1935-09-20 | 1936-03-21 | 1936-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-09-20 | 1940-03-21 | 1940-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-09-20 | 1944-03-21 | 1944-09-20 | $7700.00 | Window Closed / Lapsed |