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Patent US2706891A successfully refreshed from Google Patents.
US2706891A
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Pressure intensifier system
Assignee: Greer Hydraulics Inc
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Filing: 1952-05-31
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Granted: 1955-04-26
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Expires: 1972-05-31
Abstract
No abstract record available.
Inventors
- 👤 Edward M Greer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:21
CPC Classifications
F; F15; F15B; F15B3/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2043453A
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US2088859A
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US2351872A
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US2403912A
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US2612756A
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US2562764A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-04-25 | 1958-10-25 | 1959-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-25 | 1962-10-25 | 1963-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-25 | 1966-10-25 | 1967-04-26 | $7700.00 | Window Closed / Lapsed |