US3129030A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grapnels for submarine cables
Assignee: Post Office
•
Filing: 1962-04-10
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Granted: 1964-04-14
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Expires: 1982-04-10
Abstract
No abstract record available.
Inventors
- 👤 Brockbank Robert Alston
- 👤 Clarke Eric Fifield Stuart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:37
CPC Classifications
B; B63; B63C; B63C11/00; B63C11/48; B63C11/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A SUBMARINE CABLE GRAPNEL COMPRISING IN COMBINATION A FRAMEWORK, AT LEAST TWO OUTWARDLY EXTENDING CABLE PRONGS FIXEDLY MOUNTED ON SAID FRAMEWORK, CABLE CUTTERS MOVABLY MOUNTED ON SAID FRAMEWORK ADJACENT THE ROOTS OF SAID PRONGS, A PLURALITY OF SEA-BED ENGAGING FLUKE-LIKE MEMBERS PIVOTALLY MOUNTED ON SAID FRAMEWORK AND MOVABLE BETWEEN A RETRACTED POSITION CLOSE TO SAID FRAMEWORK AND A POSITION IN WHICH SAID FLUKE-LIKE MEMBERS ARE EXTENDED FROM SAID FRAMEWORK, TRIGGER MEANS FOR LOCKING SAID FLUKE-LIKE MEMBERS IN RETRACTED POSITION, AND OPERATING MEANS INTERCONNECTING SAID CABLE-CUTTERS AND SAID TRIGGER MEANS, SAID OPERATING MEANS UNLOCKING SAID TRIGGER
Claim 2
Dependent Claim
95 words
A SUBMARINE CABLE GRAPNEL COMPRISING IN COMBINATION A FRAMEWORK, AT LEAST TWO OUTWARDLY EXTENDING CABLE PRONGS FIXEDLY MOUNTED ON SAID FRAMEWORK, CABLE CUTTERS MOVABLY MOUNTED ON SAID FRAMEWORK ADJACENT THE ROOTS OF SAID PRONGS, A PLURALITY OF SEA-BED ENGAGING FLUKE-LIKE MEMBERS PIVOTALLY MOUNTED ON SAID FRAMEWORK AND MOVABLE BETWEEN A RETRACTED POSITION CLOSE TO SAID FRAMEWORK AND A POSITION IN WHICH SAID FLUKE-LIKE MEMBERS ARE EXTENDED FROM SAID FRAMEWORK, TRIGGER MEANS FOR LOCKING SAID FLUKE-LIKE MEMBERS IN RETRACTED POSITION, AND OPERATING MEANS INTERCONNECTING SAID CABLE-CUTTERS AND SAID TRIGGER MEANS, SAID OPERATING MEANS UNLOCKING SAID TRIGGER
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-14 | 1967-10-14 | 1968-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-14 | 1971-10-14 | 1972-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-14 | 1975-10-14 | 1976-04-14 | $7700.00 | Window Closed / Lapsed |