Patent US2640130A successfully refreshed from Google Patents.
US2640130A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermostat
Assignee: Individual
•
Filing: 1950-05-20
•
Granted: 1953-05-26
•
Expires: 1970-05-20
Abstract
No abstract record available.
Inventors
- 👤 Reingruber Frank
- 👤 Reingruber Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:49
CPC Classifications
H; H01; H01H; H01H37/00; H01H37/02; H01H37/32; H01H37/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2312408A
Cited
US2380782A
Cited
US2420184A
Cited
US2483670A
Cited
US2574134A
Cited
US2496917A
Cited
US2516501A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-25 | 1956-11-24 | 1957-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-25 | 1960-11-24 | 1961-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-25 | 1964-11-24 | 1965-05-26 | $7700.00 | Window Closed / Lapsed |