Patent US3619818A successfully refreshed from Google Patents.
US3619818A
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Artificial limbs
Assignee: HUGH STEEPER ROEHAMPTON Ltd
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Filing: 1969-10-01
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Granted: 1971-11-16
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Expires: 1989-10-01
Abstract
Abstract AN ARTICULATED ARTIFICIAL LIMB HAVING TWO PIVOTALLYCONNECTED LIMB MEMBERS REPRESENTING, FOR EXAMPLE, THE UPPER ARM AND THE FORE-ARM RESPECTIVELY OF A HUMAN ARM, THE TWO LIMB MEMBERS BEING FURTHER LINKED TOGETHER BY A TELESCOPIC LINK HAVING A READILY-RELEASABLE LOCKING DEVICE TO PERMIT THE ANGLE BETWEEN THE TWO LIMB MEMBERS TO BE VARIED AS REQUIRED.
Inventors
- 👤 Dennis W Collins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:03
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/50; A61F2/54; A61F2/58
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) | 1974-11-15 | 1975-05-17 | 1975-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-15 | 1979-05-17 | 1979-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-15 | 1983-05-17 | 1983-11-16 | $7700.00 | Window Closed / Lapsed |