Patent US1583818A successfully refreshed from Google Patents.
US1583818A
Expired / Lapsed
US
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Foot trip for door latches
Assignee: Individual
•
Filing: 1924-04-14
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Granted: 1926-05-11
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Expires: 1944-04-14
Abstract
No abstract record available.
Inventors
- 👤 Thomas W White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:19
CPC Classifications
E; E05; E05B; E05B53/00; E05B53/001; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/0969; Y10T292/097; Y10T292/0992; Y10T292/175; Y10T292/19
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) | 1929-05-10 | 1929-11-09 | 1930-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-05-10 | 1933-11-09 | 1934-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-05-10 | 1937-11-09 | 1938-05-11 | $7700.00 | Window Closed / Lapsed |