Patent US3081883A successfully refreshed from Google Patents.
US3081883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steerable gantry crane
Assignee: Manning Maxwell and Moore Inc
•
Filing: 1960-08-03
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Granted: 1963-03-19
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Expires: 1980-08-03
Abstract
No abstract record available.
Inventors
- 👤 John E Minty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:39
CPC Classifications
B; B66; B66C; B66C19/00; B66C19/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
IN A MOBILE GANTRY CRANE, A FRAME STRUCTURE HAVING FOUR CORNERS, HOISTING MECHANISM ON SAID STRUCTURE, A MULTIPLE-WHEELED TRUCK AT EACH CORNER OF SAID FRAME STRUCTURE, A VERTICAL SPINDLE ON EACH TRUCK ABOUT WHICH THE TRUCK IS BODILY ROTATABLE, AND SEPARATE DRIVE MEANS ON EACH SAID TRUCK OPERABLE INDEPENDENTLY OF THOSE ON ANY OTHER TRUCK TO BOTH ROTATE THE WHEELS THEREOF AND BODILY POSITION THE TRUCK TO STEER THE GANTRY CRANE.
Claim 2
Dependent Claim
71 words
IN A MOBILE GANTRY CRANE, A FRAME STRUCTURE HAVING FOUR CORNERS, HOISTING MECHANISM ON SAID STRUCTURE, A MULTIPLE-WHEELED TRUCK AT EACH CORNER OF SAID FRAME STRUCTURE, A VERTICAL SPINDLE ON EACH TRUCK ABOUT WHICH THE TRUCK IS BODILY ROTATABLE, AND SEPARATE DRIVE MEANS ON EACH SAID TRUCK OPERABLE INDEPENDENTLY OF THOSE ON ANY OTHER TRUCK TO BOTH ROTATE THE WHEELS THEREOF AND BODILY POSITION THE TRUCK TO STEER THE GANTRY CRANE.
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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) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |