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US2428809A
Expired / Lapsed
US
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Fluid apparatus
Assignee: Individual
•
Filing: 1944-07-17
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Granted: 1947-10-14
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Expires: 1964-07-17
Abstract
No abstract record available.
Inventors
- 👤 Arthur R Parilla
- 👤 Peters Anthony
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:27
CPC Classifications
F; F01; F01B; F01B3/00; F01B3/0002; F01B3/0005; F01B3/0082; F01B3/0085; F04; F04B; F04B7/00; F04B7/04; F04B7/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE383005C
Cited
US2083021A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-10-13 | 1951-04-14 | 1951-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-10-13 | 1955-04-14 | 1955-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-10-13 | 1959-04-14 | 1959-10-14 | $7700.00 | Window Closed / Lapsed |