US2749047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermostatic valve
Assignee: Garrett Corp
•
Filing: 1952-04-25
•
Granted: 1956-06-05
•
Expires: 1972-04-25
Abstract
No abstract record available.
Inventors
- 👤 Donald A Dotson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:36
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/01; G05D23/02; G05D23/024; G05D23/026; F; F22; F22B; F22B37/00; F22B37/02; F22B37/42; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86815
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US896587A
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US808707A
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US969848A
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US1117790A
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US1499834A
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US1550694A
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FR705977A
Cited
US2411295A
Cited
US2588350A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-05 | 1959-12-05 | 1960-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-05 | 1963-12-05 | 1964-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-05 | 1967-12-05 | 1968-06-05 | $7700.00 | Window Closed / Lapsed |