US2980128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic fluid system
Assignee: Individual
•
Filing: 1956-05-28
•
Granted: 1961-04-18
•
Expires: 1976-05-28
Abstract
No abstract record available.
Inventors
- 👤 Ancil C Stover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:00
CPC Classifications
F; F16; F16K; F16K24/00; F16K24/04; B; B60; B60T; B60T17/00; B60T17/18; B60T17/22; B60T17/221; B60T17/222; B62; B62D; B62D7/00; B62D7/06; B62D7/14; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3084; Y10T137/3087
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1005686A
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US1119980A
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US2343809A
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US2529306A
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US2624176A
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US2627868A
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US2684684A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-17 | 1964-10-17 | 1965-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-17 | 1968-10-17 | 1969-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-17 | 1972-10-17 | 1973-04-18 | $7700.00 | Window Closed / Lapsed |