US1842328A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermostatic valve and gas burner
Assignee: Patrol Valve Co
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Filing: 1928-04-21
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Granted: 1932-01-19
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Expires: 1948-04-21
Abstract
No abstract record available.
Inventors
- 👤 Pas Edmund J Te
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:46
CPC Classifications
F; F23; F23N; F23N5/00; F23N5/02; F23N5/04; F23N5/047; F23N2225/00; F23N2225/08; F23N2225/18; F23N2227/00; F23N2227/22; F23N2235/00; F23N2235/12
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) | 1935-01-18 | 1935-07-20 | 1936-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-01-18 | 1939-07-20 | 1940-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-01-18 | 1943-07-20 | 1944-01-19 | $7700.00 | Window Closed / Lapsed |