US2909368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differential area liquid springs
Assignee: Individual
•
Filing: 1955-01-13
•
Granted: 1959-10-20
•
Expires: 1975-01-13
Abstract
No abstract record available.
Inventors
- 👤 Paul H Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:50
CPC Classifications
B; B64; B64C; B64C25/00; B64C25/32; B64C25/58; B64C25/60; F; F16; F16F; F16F5/00; F16F9/00; F16F9/32; F16F9/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB189411726A
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US1759674A
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US2094882A
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US2146089A
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GB664972A
Cited
US2805854A
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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) | 1962-10-19 | 1963-04-20 | 1963-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-19 | 1967-04-20 | 1967-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-19 | 1971-04-20 | 1971-10-20 | $7700.00 | Window Closed / Lapsed |