US2679418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hatch cover lock
Assignee: Standard Railway Equipment Manufacturing Co
•
Filing: 1950-12-30
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Granted: 1954-05-25
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Expires: 1970-12-30
Abstract
No abstract record available.
Inventors
- 👤 Edward S Cisco
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:33
CPC Classifications
B; B61; B61D; B61D17/00; B61D17/04; B61D17/12; B61D17/16; B63; B63B; B63B19/00; B63B19/12; B63B19/24; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/0911; Y10T292/0945; Y10T292/0949; Y10T292/0951; Y10T292/0956; Y10T292/20; Y10T292/202
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-24 | 1957-11-23 | 1958-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-24 | 1961-11-23 | 1962-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-24 | 1965-11-23 | 1966-05-25 | $7700.00 | Window Closed / Lapsed |