Patent US2911134A successfully refreshed from Google Patents.
US2911134A
Expired / Lapsed
US
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Leg length adjusting apparatus
Assignee: Individual
•
Filing: 1955-09-22
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Granted: 1959-11-03
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Expires: 1975-09-22
Abstract
No abstract record available.
Inventors
- 👤 Richard F Derby
- 👤 Biery Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:06
CPC Classifications
E; E06; E06C; E06C7/00; E06C7/42; E06C7/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1792714A
Cited
US2176551A
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US2281769A
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US2289499A
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US2413342A
Cited
US2555036A
Cited
US2448630A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-02 | 1963-05-04 | 1963-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-02 | 1967-05-04 | 1967-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-02 | 1971-05-04 | 1971-11-03 | $7700.00 | Window Closed / Lapsed |