Patent US2841960A successfully refreshed from Google Patents.
US2841960A
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Fluid pressure control system
Assignee: J H HOLAN CORP
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Filing: 1954-10-11
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Granted: 1958-07-08
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Expires: 1974-10-11
Abstract
No abstract record available.
Inventors
- 👤 Holan James Howard
- 👤 Herman J Troche
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:49
CPC Classifications
E; E06; E06C; E06C5/00; E06C5/02; E06C5/04; E06C5/06; E06C5/12; E06C5/14; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20636; Y10T74/20672; Y10T74/2069
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1330860A
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US2247141A
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US2228568A
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US2331108A
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US2527943A
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US2614743A
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US2597086A
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US2618121A
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US2742216A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-07 | 1962-01-06 | 1962-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-07 | 1966-01-06 | 1966-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-07 | 1970-01-06 | 1970-07-08 | $7700.00 | Window Closed / Lapsed |