US2667890A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High and low pressure cutoff valve
Assignee: Individual
•
Filing: 1948-12-06
•
Granted: 1954-02-02
•
Expires: 1968-12-06
Abstract
No abstract record available.
Inventors
- 👤 Robert E Meynig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:59
CPC Classifications
F; F16; F16K; F16K17/00; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7723; Y10T137/7725; Y10T137/773
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US513902A
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US524393A
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US693133A
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US819492A
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US943559A
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US1093899A
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US2024042A
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US2327055A
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US2635626A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-01 | 1957-08-03 | 1958-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-01 | 1961-08-03 | 1962-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-01 | 1965-08-03 | 1966-02-02 | $7700.00 | Window Closed / Lapsed |