US2633802A
Expired / Lapsed
US
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Variable displacement fluid apparatus
Assignee: Individual
•
Filing: 1947-10-13
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Granted: 1953-04-07
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Expires: 1967-10-13
Abstract
No abstract record available.
Inventors
- 👤 Arthur R Parilla
- 👤 Peters Anthony
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:36
CPC Classifications
F; F04; F04B; F04B7/00; F04B7/04; F04B7/06; F01; F01B; F01B3/00; F01B3/0002; F01B3/0005; F01B3/0082; F01B3/0085; F01B3/0088; F04B49/00; F04B49/005; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18296; Y10T74/18336
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1404625A
Cited
US1971601A
Cited
US2060076A
Cited
GB424609A
Cited
US2300009A
Cited
US2428809A
Cited
US2434747A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-06 | 1956-10-06 | 1957-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-06 | 1960-10-06 | 1961-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-06 | 1964-10-06 | 1965-04-07 | $7700.00 | Window Closed / Lapsed |