US1656706A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compensating thermostatic device
Assignee: Electrol Inc
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Filing: 1927-03-18
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Granted: 1928-01-17
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Expires: 1947-03-18
Abstract
No abstract record available.
Inventors
- 👤 Albert G Hann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:38
CPC Classifications
G; G01; G01K; G01K5/00; G01K5/48; G01K5/56; G01K5/62; F; F23; F23N; F23N2239/00; F23N2239/06
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) | 1931-01-16 | 1931-07-18 | 1932-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-01-16 | 1935-07-18 | 1936-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-01-16 | 1939-07-18 | 1940-01-17 | $7700.00 | Window Closed / Lapsed |