US2991012A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermostatic control valve
Assignee: —
•
Filing: —
•
Granted: 1961-07-04
•
Expires: 1978-07-04
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:23
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/01; G05D23/02; G05D23/024; G05D23/026; G05D23/027; F; F16; F16K; F16K31/00; F16K31/44; F16K31/60; F16K31/602
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2319418A
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US2690875A
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US2656983A
Cited
US2702052A
Cited
US2743871A
Cited
US2825507A
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US2777639A
Cited
US2814447A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-03 | 1965-01-02 | 1965-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-03 | 1969-01-02 | 1969-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-03 | 1973-01-02 | 1973-07-04 | $7700.00 | Window Closed / Lapsed |