Patent US2987004A successfully refreshed from Google Patents.
US2987004A
Expired / Lapsed
US
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Fluid pressure device
Assignee: Individual
•
Filing: 1955-07-29
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Granted: 1961-06-06
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Expires: 1975-07-29
Abstract
No abstract record available.
Inventors
- 👤 Jerome L Murray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:26
CPC Classifications
F; F01; F01C; F01C5/00; F01C5/06; F01C5/08; F04; F04B; F04B43/00; F04B43/0009; F04B43/0054; F04B43/0072; F04B43/12; F04B43/1253; F04B43/1261
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
US315667A
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US320888A
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US909135A
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US2212733A
Cited
US2334148A
Cited
US2466618A
Cited
GB615198A
Cited
GB628785A
Cited
US2693766A
Cited
US2696173A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-05 | 1964-12-05 | 1965-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-05 | 1968-12-05 | 1969-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-05 | 1972-12-05 | 1973-06-06 | $7700.00 | Window Closed / Lapsed |