US2605080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mud pump valve and seat
Assignee: Individual
•
Filing: 1948-02-24
•
Granted: 1952-07-29
•
Expires: 1968-02-24
Abstract
No abstract record available.
Inventors
- 👤 Philip M Rea
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:40
CPC Classifications
F; F04; F04B; F04B53/00; F04B53/10; F04B53/102; F04B53/1022; F04B53/1027; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4245; Y10T137/4273; Y10T137/428; Y10T137/4287; Y10T137/7722; Y10T137/7837; Y10T137/785; Y10T137/7851
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US322270A
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US524049A
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US693513A
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US1327564A
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US1484997A
Cited
US2061480A
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US2021351A
Cited
US2197455A
Cited
US2402713A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-29 | 1956-01-28 | 1956-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-29 | 1960-01-28 | 1960-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-29 | 1964-01-28 | 1964-07-29 | $7700.00 | Window Closed / Lapsed |