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US2721074A
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Hydraulic-pneumatic shock absorber
Assignee: Individual
•
Filing: 1949-06-17
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Granted: 1955-10-18
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Expires: 1969-06-17
Abstract
No abstract record available.
Inventors
- 👤 Bourcier Christian Marie Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:16
CPC Classifications
F; F16; F16F; F16F9/00; F16F9/06; F16F9/061; F16F9/063; F16F2230/00; F16F2230/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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FR636778A
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FR359201A
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FR452217A
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US1918322A
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US1886712A
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US1918699A
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US2045027A
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FR751475A
Cited
GB475417A
Cited
US2207088A
Cited
US2224306A
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US2369007A
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US2436573A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-17 | 1959-04-18 | 1959-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-17 | 1963-04-18 | 1963-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-17 | 1967-04-18 | 1967-10-18 | $7700.00 | Window Closed / Lapsed |