US3055388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid pressure control valves
Assignee: Mastabar Mining Equipment Co Ltd
•
Filing: 1959-05-20
•
Granted: 1962-09-25
•
Expires: 1979-05-20
Abstract
No abstract record available.
Inventors
- 👤 Tebb Bernard
- 👤 Perry Clarence Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:09
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/02; F16K17/04; F16K17/0426; F16K17/0406; F16K17/0433; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7738; Y10T137/7739
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US502252A
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US1305964A
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US2704549A
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US704557A
Cited
US973211A
Cited
US1032482A
Cited
US2339101A
Cited
US2415258A
Cited
US2686534A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-24 | 1966-03-26 | 1966-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-24 | 1970-03-26 | 1970-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-24 | 1974-03-26 | 1974-09-25 | $7700.00 | Window Closed / Lapsed |