US2431801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure compensated thermostat
Assignee: Individual
•
Filing: 1944-01-11
•
Granted: 1947-12-02
•
Expires: 1964-01-11
Abstract
No abstract record available.
Inventors
- 👤 George A Gibson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:24
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/19; G05D23/275; G05D23/1902
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US766820A
Cited
FR448659A
Cited
US1205434A
Cited
US1160186A
Cited
US1535829A
Cited
DE444375C
Cited
US1702209A
Cited
US2055280A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-01 | 1951-06-02 | 1951-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-01 | 1955-06-02 | 1955-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-01 | 1959-06-02 | 1959-12-02 | $7700.00 | Window Closed / Lapsed |