Patent US3092969A successfully refreshed from Google Patents.
US3092969A
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Operation of hydraulic presses
Assignee: National Research Development Corp UK
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Filing: 1960-08-15
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Granted: 1963-06-11
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Expires: 1980-08-15
Abstract
No abstract record available.
Inventors
- 👤 Firth Donald
- 👤 James D Hamilton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:18
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/02; F15B11/022; B; B30; B30B; B30B15/00; B30B15/16; F15B2211/00; F15B2211/20; F15B2211/205; F15B2211/20507; F15B2211/20515; F15B2211/2053; F15B2211/20569; F15B2211/20576; F15B2211/30; F15B2211/305; F15B2211/30505; F15B2211/30525; F15B2211/315; F15B2211/3157; F15B2211/31576; F15B2211/32; F15B2211/327; F15B2211/50; F15B2211/505; F15B2211/50509; F15B2211/50518; F15B2211/50536; F15B2211/515; F15B2211/5156; F15B2211/55; F15B2211/60; F15B2211/625; F15B2211/635; F15B2211/6355; F15B2211/70; F15B2211/705; F15B2211/7051; F15B2211/7052; F15B2211/7053; F15B2211/7054; F15B2211/775; F15B2211/80; F15B2211/86; F15B2211/8613
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2602294A
Cited
DE1047564B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |