Patent US2470086A successfully refreshed from Google Patents.
US2470086A
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Hydraulic apparatus
Assignee: Denison Engineering Co
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Filing: 1944-07-19
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Granted: 1949-05-17
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Expires: 1964-07-19
Abstract
No abstract record available.
Inventors
- 👤 Cecil E Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:55
CPC Classifications
F; F03; F03C; F03C1/00; F03C1/08; F03C1/10; F03C1/12; F15; F15B; F15B2211/00; F15B2211/20; F15B2211/205; F15B2211/2053; F15B2211/20538; F15B2211/30; F15B2211/305; F15B2211/30525; F15B2211/315; F15B2211/3157; F15B2211/31576; F15B2211/32; F15B2211/321; F15B2211/325; F15B2211/326; F15B2211/329; F15B2211/35; F15B2211/50; F15B2211/505; F15B2211/50509; F15B2211/50518; F15B2211/515; F15B2211/5151; F15B2211/55; F15B2211/70; F15B2211/705; F15B2211/7051; F15B2211/7053; F15B2211/75; F15B2211/77; F15B2211/7725
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB204682A
Cited
US1931452A
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US2169470A
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US2212871A
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US2367241A
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US2316471A
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US2363179A
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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) | 1952-05-16 | 1952-11-15 | 1953-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-16 | 1956-11-15 | 1957-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-16 | 1960-11-15 | 1961-05-17 | $7700.00 | Window Closed / Lapsed |