US2603452A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump valve
Assignee: CHARLES J JONES
•
Filing: 1949-04-04
•
Granted: 1952-07-15
•
Expires: 1969-04-04
Abstract
No abstract record available.
Inventors
- 👤 Frank R Spinney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:54
CPC Classifications
F; F04; F04B; F04B53/00; F04B53/10; F04B53/1002; F04B53/1017; F04B53/102; F04B53/1032; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7908; Y10T137/7909; Y10T137/7913; Y10T137/7915; Y10T137/7919; Y10T137/7922; Y10T137/7929; Y10T137/7937
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US770088A
Cited
US1297312A
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US1568940A
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US1602372A
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US1939128A
Cited
US1942417A
Cited
US1940999A
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US1924356A
Cited
US2025296A
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US2223509A
Cited
US2479554A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-15 | 1956-01-14 | 1956-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-15 | 1960-01-14 | 1960-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-15 | 1964-01-14 | 1964-07-15 | $7700.00 | Window Closed / Lapsed |