Patent US3108631A successfully refreshed from Google Patents.
US3108631A
Expired / Lapsed
US
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Hatch covers
Assignee: VON TELL TRADING CO AB
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Filing: 1961-11-09
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Granted: 1963-10-29
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Expires: 1981-11-09
Abstract
No abstract record available.
Inventors
- 👤 Dahlin Carl Erik Ingemar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:05
CPC Classifications
B; B63; B63B; B63B19/00; B63B19/12; B63B19/14; B63B19/19; B63B19/203
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
IN A HATCH COVER COMPRISING A HATCH COAMING AND AT LEAST TWO COVER SECTIONS PIVOTALLY HINGED TO EACH OTHER, ONE OF SAID COVER SECTIONS BEING ATTACHED TO THE HATCH COAMING AND DENOTED THE FIRST SECTION AND THE NEXT SECTION, BEING DENOTED THE SECOND SECTION, SWINGABLE IN SUCH A WAY THAT THEIR UNDER SIDES BE TURNED TOWARDS EACH OTHER, CATCHES FOR RELEASABLY RETAINING THE SAID FIRST SECTION IN ITS RAISED POSITION, CATCHES FOR RELEASABLY RETAINING THE SAID SECOND SECTION AGAINST SAID FIRST SECTION, BOLTS ARRANGED IN CONJUNCTION WITH SAID FIRST SECTION AND FORMING THE HINGE SHAFT BETWEEN SAID FIRST SECTION AND SAID HATCH COAMING, NOTCHES EXTENDING SUBSTANTIALLY VERTICALLY IN CARRYING FITTINGS ON ONE END BORDER OF SAID HATCH COAMING FOR GUIDING SAID BOLTS, SAID FIRST SECTION HAVING, OUTSIDE SAID HINGE SHAFT, SUPPORTS CAPABLE OF BEING BROUGHT TO REST AGAINST ABUTMENTS ON SAID END BORDER OF SAID HATCH COAMING BEFORE SAID FIRST SECTION IS COMPLETELY RAISED.
Claim 2
Dependent Claim
154 words
IN A HATCH COVER COMPRISING A HATCH COAMING AND AT LEAST TWO COVER SECTIONS PIVOTALLY HINGED TO EACH OTHER, ONE OF SAID COVER SECTIONS BEING ATTACHED TO THE HATCH COAMING AND DENOTED THE FIRST SECTION AND THE NEXT SECTION, BEING DENOTED THE SECOND SECTION, SWINGABLE IN SUCH A WAY THAT THEIR UNDER SIDES BE TURNED TOWARDS EACH OTHER, CATCHES FOR RELEASABLY RETAINING THE SAID FIRST SECTION IN ITS RAISED POSITION, CATCHES FOR RELEASABLY RETAINING THE SAID SECOND SECTION AGAINST SAID FIRST SECTION, BOLTS ARRANGED IN CONJUNCTION WITH SAID FIRST SECTION AND FORMING THE HINGE SHAFT BETWEEN SAID FIRST SECTION AND SAID HATCH COAMING, NOTCHES EXTENDING SUBSTANTIALLY VERTICALLY IN CARRYING FITTINGS ON ONE END BORDER OF SAID HATCH COAMING FOR GUIDING SAID BOLTS, SAID FIRST SECTION HAVING, OUTSIDE SAID HINGE SHAFT, SUPPORTS CAPABLE OF BEING BROUGHT TO REST AGAINST ABUTMENTS ON SAID END BORDER OF SAID HATCH COAMING BEFORE SAID FIRST SECTION IS COMPLETELY RAISED.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-10-28 | 1967-04-29 | 1967-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-28 | 1971-04-29 | 1971-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-28 | 1975-04-29 | 1975-10-29 | $7700.00 | Window Closed / Lapsed |