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US2526112A
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US
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Thermopile structure
Assignee: General Controls Co
•
Filing: 1947-07-12
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Granted: 1950-10-17
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Expires: 1967-07-12
Abstract
No abstract record available.
Inventors
- 👤 Laurence C Biggle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:52
CPC Classifications
G; G01; G01K; G01K7/00; G01K7/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2202533A
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US2197818A
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US2266416A
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US2374701A
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US2407517A
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US2349306A
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US2416455A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-16 | 1954-04-17 | 1954-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-16 | 1958-04-17 | 1958-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-16 | 1962-04-17 | 1962-10-17 | $7700.00 | Window Closed / Lapsed |