Patent US3144149A successfully refreshed from Google Patents.
US3144149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transporting equipment for containers
Assignee: Dempster Systems Inc
•
Filing: 1961-04-20
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Granted: 1964-08-11
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Expires: 1981-04-20
Abstract
No abstract record available.
Inventors
- 👤 George R Dempster
- 👤 William A Herpich
- 👤 Samuel E Harvey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:30
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/64; B60P1/6418; B60P1/6454
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
96 words
IN EQUIPMENT MOUNTED ON A VEHICLE, THE COMBINATION OF A SUPPORTING FRAME MOUNTED ON THE VEHICLE FOR SWINGING MOVEMENT TO RAISED AND LOWERED POSITIONS ABOUT AN AXIS SPACED REARWARDLY THEREOF, A CONTAINER MOUNTED ON THE FRAME, SAID CONTAINER HAVING A PLURALITY OF HOOK DEVICES SPACED ALONG THE BOTTOM THEREOF LENGTHWISE OF THE SUPPORTING FRAME, SAID HOOK DEVICES HAVING OPEN THROATS TOWARD THE REAR OF THE VEHICLE, A CARRIAGE MOUNTED ON THE FRAME FOR MOVEMENT BACK AND FORTH THEREALONG, SAID CARRIAGE HAVING A BAIL THEREON INCLUDING A PORTION DISPOSED IN EMBRACING RELATION AROUND ONE OF THE HOOK
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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) | 1967-08-11 | 1968-02-10 | 1968-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-11 | 1972-02-10 | 1972-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-11 | 1976-02-10 | 1976-08-11 | $7700.00 | Window Closed / Lapsed |