Patent US1242749A successfully refreshed from Google Patents.
US1242749A
Expired / Lapsed
US
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Door-latch.
Assignee: WALKER-WELLS Co
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Filing: 1917-01-29
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Granted: 1917-10-09
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Expires: 1937-01-29
Abstract
No abstract record available.
Inventors
- 👤 George W Wells
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:13
CPC Classifications
E; E05; E05B; E05B85/00; E05B85/20; E05B85/24; Y; Y10; Y10S; Y10S292/00; Y10S292/37; Y10S292/49; Y10T; Y10T292/00; Y10T292/08; Y10T292/1043; Y10T292/1051; Y10T292/1052; Y10T292/1053; Y10T292/1055
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) | 1920-10-08 | 1921-04-09 | 1921-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1924-10-08 | 1925-04-09 | 1925-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1928-10-08 | 1929-04-09 | 1929-10-09 | $7700.00 | Window Closed / Lapsed |