Patent US3553756A successfully refreshed from Google Patents.
US3553756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dockboard
Assignee: ABON Corp A DE CORP
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Filing: 1969-01-28
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Granted: 1971-01-12
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Expires: 1989-01-28
Abstract
Abstract A DOCKBOARD ASSEMBLY INCLUDING A SUPPORT MEANS WITH A RAMP PIVOTALLY CONNECTED TO THE SUPPORT MEANS AND A LIP PIVOTALLY CONNECTED TO THE RAMP FOR MOVEMENT BE TWEEN A PENDENT POSITION AND AN EXTENDED POSITION TO FORM AN EXTENSION OF THE RAMP. A CHAIN IS CONNECTED AT ONE END TO THE LIP AND IS CONNECTED AT THE OTHER END TO A MANUALLY GRASPABLE HANDLE, BOTH OF WHICH ARE CONNECTED TO A CABLE WHICH RETRACTS THE CHAIN AND HANDLE TO A NONUSE POSITION. THE CABLE IS EITHER ATTACHED TO A RETRIEVER REEL OR A WEIGHT.
Inventors
- 👤 Robert W Hecker Jr
- 👤 Robert C Beckwith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:05
CPC Classifications
B; B65; B65G; B65G69/00; B65G69/28; B65G69/2805; B65G69/2811; B65G69/2858
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) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |