US3142387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flying rope crane
Assignee: Manning Maxwell and Moore Inc
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Filing: 1962-02-20
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Granted: 1964-07-28
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Expires: 1982-02-20
Abstract
No abstract record available.
Inventors
- 👤 John E Minty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:06
CPC Classifications
G; G21; G21F; G21F7/00; G21F7/06; G21F7/067; B; B66; B66C; B66C7/00; B66C2700/00; B66C2700/01; B66C2700/012
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
97 words
IN A FLYING ROPE CRANE INSTALLATION, MEANS DEFINING AN AREA IN WHICH THE CRANE IS TO OPERATE, A TRAVELLING BRIDGE SPANNING SAID AREA, A TROLLEY TO TRAVERSE SAID BRIDGE, SHEAVES AT EACH END OF SAID BRIDGE AND EACH SIDE OF SAID TROLLEY, A PAIR OF SEPARATE ROPES EACH HAVING AN END ANCHORED AT THE FAR SIDE OF SAID AREA AND TRAINED OVER SAID SHEAVES ONE ON ONE SIDE OF SAID TROLLEY AND ONE ON THE OTHER SIDE, A SINGLE DRIVE DRUM OUTSIDE SAID AREA TO WHICH BOTH SAID ROPES ARE CONNECTED AND LAPPED THEREAROUND IN OPPOSITE DIRECTIONS,
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) | 1967-07-28 | 1968-01-27 | 1968-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-28 | 1972-01-27 | 1972-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-28 | 1976-01-27 | 1976-07-28 | $7700.00 | Window Closed / Lapsed |