Patent US3979625A successfully refreshed from Google Patents.
Patent US3164403A successfully refreshed from Google Patents.
US3164403A
Expired / Lapsed
US
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Hatch covers
Assignee: MARINE STEEL CORP
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Filing: 1963-02-20
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Granted: 1965-01-05
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Expires: 1983-02-20
Abstract
No abstract record available.
Inventors
- 👤 Jerome Jack
- 👤 Jr Robert E Wright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:02
CPC Classifications
B; B63; B63B; B63B19/00; B63B19/12; B63B19/14; B63B19/19; B63B19/197; Y; Y10; Y10T; Y10T292/00; Y10T292/20; Y10T292/202
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
APPARATUS FOR LOCKING COVER SECTIONS TO A HATCH COMPRISING A SUPPORT ADJACENT AN EDGE OF THE HATCH, A CRANK HAVING A FIRST ARM AND A SECOND ARM AND BEING PIVOTALLY MOUNTED TO SAID SUPPORT, A LEVER HAVING ONE END PIVOTALLY MUNTED TO SAID SUPPORT, A LINK PIVOTALLY CONNECTED TO SAID SECOND ARM AND PIVOTALLY CONNECTED TO SAID LEVER AND ACTUATING MEANS CONNECTED TO THE FIRST ARM OF SAID CRANK WHEREBY SAID CRANK IS PIVOTALLY MOVABLE THROUGH AN ANGLE OF SUBSTANTIALLY 90 DEGREES WHILE SAID LEVER IS PIVOTALLY MOVABLE THROUGH AN ANGLE OF SUBSTANTIALLY 180 DEGREES.
Claim 2
Dependent Claim
95 words
APPARATUS FOR LOCKING COVER SECTIONS TO A HATCH COMPRISING A SUPPORT ADJACENT AN EDGE OF THE HATCH, A CRANK HAVING A FIRST ARM AND A SECOND ARM AND BEING PIVOTALLY MOUNTED TO SAID SUPPORT, A LEVER HAVING ONE END PIVOTALLY MUNTED TO SAID SUPPORT, A LINK PIVOTALLY CONNECTED TO SAID SECOND ARM AND PIVOTALLY CONNECTED TO SAID LEVER AND ACTUATING MEANS CONNECTED TO THE FIRST ARM OF SAID CRANK WHEREBY SAID CRANK IS PIVOTALLY MOVABLE THROUGH AN ANGLE OF SUBSTANTIALLY 90 DEGREES WHILE SAID LEVER IS PIVOTALLY MOVABLE THROUGH AN ANGLE OF SUBSTANTIALLY 180 DEGREES.
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) | 1968-01-05 | 1968-07-06 | 1969-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-05 | 1972-07-06 | 1973-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-05 | 1976-07-06 | 1977-01-05 | $7700.00 | Window Closed / Lapsed |