US2810290A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermo-actuator
Assignee: Individual
•
Filing: 1954-04-08
•
Granted: 1957-10-22
•
Expires: 1974-04-08
Abstract
No abstract record available.
Inventors
- 👤 James F Scherer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:14
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/01; G05D23/02; G05D23/021
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1521985A
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US251355A
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US406138A
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US214122A
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FR345050A
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GB190501019A
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US1082212A
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US1484816A
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FR718239A
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CH167547A
Cited
US2208149A
Cited
US2133860A
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US2593238A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-21 | 1961-04-22 | 1961-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-21 | 1965-04-22 | 1965-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-21 | 1969-04-22 | 1969-10-22 | $7700.00 | Window Closed / Lapsed |