US2816683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hatch cover and lock
Assignee: Pullman-Standard Car Manufacturing Co
•
Filing: 1953-05-11
•
Granted: 1957-12-17
•
Expires: 1973-05-11
Abstract
No abstract record available.
Inventors
- 👤 Archie M Miers
- 👤 Sluys William Van Der
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:13
CPC Classifications
E; E05; E05C; E05C3/00; E05C3/12; E05C3/14; F; F16; F16J; F16J13/00; F16J13/16; F16J13/20; E05B; E05B63/00; E05B63/0052; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/1043; Y10T292/1063; Y10T292/20; Y10T292/202
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-16 | 1961-06-17 | 1961-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-16 | 1965-06-17 | 1965-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-16 | 1969-06-17 | 1969-12-17 | $7700.00 | Window Closed / Lapsed |