US2027458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermostatic valve
Assignee: Patrol Valve Co
•
Filing: 1933-01-12
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Granted: 1936-01-14
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Expires: 1953-01-12
Abstract
No abstract record available.
Inventors
- 👤 Pas Edmund J Te
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:56
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/01; G05D23/02; G05D23/08; Y; Y10; Y10S; Y10S137/00; Y10S137/901; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2511; Y10T137/7722; Y10T137/7723; Y10T137/7724; Y10T137/8593; Y10T137/87917
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1939-01-13 | 1939-07-15 | 1940-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-01-13 | 1943-07-15 | 1944-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-01-13 | 1947-07-15 | 1948-01-14 | $7700.00 | Window Closed / Lapsed |