US2844319A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermostatic valve structures
Assignee: Carrier Corp
•
Filing: 1954-12-10
•
Granted: 1958-07-22
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Expires: 1974-12-10
Abstract
No abstract record available.
Inventors
- 👤 William L Mcgrath
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:10
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/01; G05D23/13; G05D23/1306; G05D23/132; F; F24; F24F; F24F11/00; F24F11/70; F24F11/80; F24F11/83; F24F11/84; F24F3/00; F24F3/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US726985A
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US875957A
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US940438A
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US1082212A
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US1989870A
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US2326226A
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US2556479A
Cited
US2539194A
Cited
US2495272A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-21 | 1962-01-20 | 1962-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-21 | 1966-01-20 | 1966-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-21 | 1970-01-20 | 1970-07-22 | $7700.00 | Window Closed / Lapsed |