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US3002741A
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US
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Hydraulic damper
Assignee: Individual
•
Filing: 1961-01-30
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Granted: 1961-10-03
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Expires: 1981-01-30
Abstract
No abstract record available.
Inventors
- 👤 Akutowicz Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:07
CPC Classifications
F; F16; F16F; F16F9/00; F16F9/10; B; B60; B60G; B60G13/00; B60G13/02; B60G13/06; B60G13/08; F16F2230/00; F16F2230/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2534123A
Cited
CH267245A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-02 | 1965-04-03 | 1965-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-02 | 1969-04-03 | 1969-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-02 | 1973-04-03 | 1973-10-03 | $7700.00 | Window Closed / Lapsed |