US2336446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pressure intensifier
Assignee: Hydraulic Development Corp Inc
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Filing: 1941-10-06
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Granted: 1943-12-07
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Expires: 1961-10-06
Abstract
No abstract record available.
Inventors
- 👤 Warren R Tucker
- 👤 George A Waldie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:34
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/02; F15B11/022; F15B2211/00; F15B2211/30; F15B2211/305; F15B2211/30505; F15B2211/3051; F15B2211/30525; F15B2211/315; F15B2211/31505; F15B2211/31511; F15B2211/3157; F15B2211/31576; F15B2211/40; F15B2211/405; F15B2211/40507; F15B2211/40515; F15B2211/40546; F15B2211/40576; F15B2211/415; F15B2211/41509; F15B2211/42; F15B2211/428; F15B2211/70; F15B2211/775
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1946-12-06 | 1947-06-07 | 1947-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-12-06 | 1951-06-07 | 1951-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-12-06 | 1955-06-07 | 1955-12-07 | $7700.00 | Window Closed / Lapsed |