US2836198A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control valve
Assignee: Individual
•
Filing: 1952-11-07
•
Granted: 1958-05-27
•
Expires: 1972-11-07
Abstract
No abstract record available.
Inventors
- 👤 Robert M Mcneill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:19
CPC Classifications
F; F16; F16K; F16K39/00; F16K39/04; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86718; Y10T137/86759; Y10T137/86767; Y10T137/86775; Y10T137/86791; Y10T137/86799; Y10T137/86807
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US430089A
Cited
US696329A
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NL1388C
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US1425088A
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US1597747A
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US1701716A
Cited
US1730322A
Cited
FR773709A
Cited
FR45235E
Cited
US2510356A
Cited
US2682748A
Cited
US2651511A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-26 | 1961-11-25 | 1962-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-26 | 1965-11-25 | 1966-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-26 | 1969-11-25 | 1970-05-27 | $7700.00 | Window Closed / Lapsed |