Patent US2845338A successfully refreshed from Google Patents.
Patent US3104643A successfully refreshed from Google Patents.
US3104643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hatch cover and sealing device therefor
Assignee: STATES STEAMSHIP CO
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Filing: 1960-07-06
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Granted: 1963-09-24
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Expires: 1980-07-06
Abstract
No abstract record available.
Inventors
- 👤 Lester A Vallet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:27
CPC Classifications
B; B63; B63B; B63B19/00; B63B19/12; B63B19/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
APPARATUS FOR COVERING A HATCHWAY ON A SHIP, BARGE OR THE LIKE COMPRISING, IN COMBINATION, A COAMING HAVING A RELATIVELY FLAT UPPER SURFACE DEFINING A HATCHWAY, A MULTI-SECTION HATCH COVER ROTATABLY SUPPORTED ADJACENT ONE END OF THE COAMING FOR MOVEMENT BETWEEN A RETRACTED, OPEN POSITION AND AN EXTENDED, CLOSED POSITION, THE LATTER POSITION BEING IMMEDIATELY ABOVE THE FLAT SURFACES OF SAID COAMING, ROLLERS MOVABLY SUPPORTING THE OPPOSITE END OF THE HATCH COVER UPON THE FLAT UPPER SURFACE OF THE COAMING, MEANS TO MOVE THE HATCH COVER TO ITS CLOSED POSITION, INFLATABLE GASKETS SUPPORTED ALONG THE UNDER SIDE OF SAID HATCH COVER ADJACENT THE PERIMETERS OF THE SECTIONS THEREOF, SAID GASKETS OVERLYING THE FLAT
Claim 2
Dependent Claim
113 words
APPARATUS FOR COVERING A HATCHWAY ON A SHIP, BARGE OR THE LIKE COMPRISING, IN COMBINATION, A COAMING HAVING A RELATIVELY FLAT UPPER SURFACE DEFINING A HATCHWAY, A MULTI-SECTION HATCH COVER ROTATABLY SUPPORTED ADJACENT ONE END OF THE COAMING FOR MOVEMENT BETWEEN A RETRACTED, OPEN POSITION AND AN EXTENDED, CLOSED POSITION, THE LATTER POSITION BEING IMMEDIATELY ABOVE THE FLAT SURFACES OF SAID COAMING, ROLLERS MOVABLY SUPPORTING THE OPPOSITE END OF THE HATCH COVER UPON THE FLAT UPPER SURFACE OF THE COAMING, MEANS TO MOVE THE HATCH COVER TO ITS CLOSED POSITION, INFLATABLE GASKETS SUPPORTED ALONG THE UNDER SIDE OF SAID HATCH COVER ADJACENT THE PERIMETERS OF THE SECTIONS THEREOF, SAID GASKETS OVERLYING THE FLAT
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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) | 1966-09-23 | 1967-03-25 | 1967-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-23 | 1971-03-25 | 1971-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-23 | 1975-03-25 | 1975-09-24 | $7700.00 | Window Closed / Lapsed |