US2940790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gate locking device
Assignee: SMITH FENCE Co Inc
•
Filing: 1957-06-03
•
Granted: 1960-06-14
•
Expires: 1977-06-03
Abstract
No abstract record available.
Inventors
- 👤 John J Ingalls
- 👤 Adolph W Hewson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:35
CPC Classifications
E; E05; E05B; E05B65/00; E05B65/0007; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/1006; Y10T292/1007; Y10T292/1013; Y10T292/1014; Y10T292/1022; Y10T292/1025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1312931A
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US727494A
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US1090969A
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US1640394A
Cited
US1939954A
Cited
FR853639A
Cited
US2358914A
Cited
US2577930A
Cited
US2641494A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |