Patent US2855038A successfully refreshed from Google Patents.
US2855038A
Expired / Lapsed
US
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Hatch cover assembly
Assignee: G M E Corp
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Filing: 1955-05-16
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Granted: 1958-10-07
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Expires: 1975-05-16
Abstract
No abstract record available.
Inventors
- 👤 Edward M Greer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:58
CPC Classifications
B; B63; B63B; B63B19/00; B63B19/12; B63B19/14; B63B19/19; B63B19/197
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1974775A
Cited
US2322372A
Cited
FR971979A
Cited
FR55607E
Cited
US2491261A
Cited
US2640454A
Cited
US2664947A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-06 | 1962-04-07 | 1962-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-06 | 1966-04-07 | 1966-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-06 | 1970-04-07 | 1970-10-07 | $7700.00 | Window Closed / Lapsed |