US3606053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grappler-spreader for cantilever-boom trucks
Assignee: Midland Ross Corp
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Filing: 1969-12-15
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Granted: 1971-09-20
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Expires: 1989-12-15
Abstract
Abstract AN EXPANDABLE SPREADER AND GRAPPLING DEVICE, TERMED HEREIN A GRAPPLER-SPREADER, FOR TOP-LIFTING CARGO CONTAINER AND BOTTOM-LIFTING CONTAINERS, PIGGYBACK TRAILERS, ETC. PARTICULARLY ADAPTED FOR USE ON LARGE FRONT OR SIDE LIFT TRUCKS OR OTHER VEHICLES WHICH PROVIDE A CANTILEVER-TYPE LIFTING BOOM. FOR BOTTOM-LIFTING, THE DEVICE NECESSARILY HAS GRAPPLING ARMS WHICH ARE RETRACTABLE IN ORDER THAT THE TOPLIFTING MECHANISM MAY BE USED MORE EFFECTIVELY. IN THE PRESENT INSTANCE, THE ARMS, WHICH ARE ON THE SIDE OF THE SPREADER TOWARD THE SUPPORTING VEHICLE, ARE SHORTENABLE TO A LENGTH WITHIN THE HEIGHT OF A CONTAINER.
Inventors
- 👤 Donald R Whiteman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:31
CPC Classifications
B; B66; B66F; B66F9/00; B66F9/06; B66F9/075; B66F9/12; B66F9/18; B66F9/186
Claims Analysis
Total Claims: 0
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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) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |