US2731532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature change detectors and method for producing same
Assignee: Graviner Manufacturing Co Ltd
•
Filing: 1952-07-17
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Granted: 1956-01-17
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Expires: 1972-07-17
Abstract
No abstract record available.
Inventors
- 👤 Mathisen Anders
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:24
CPC Classifications
G; G01; G01K; G01K7/00; G01K7/36; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49087; Y10T29/49089
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2477348A
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US1359400A
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US1588558A
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US2216375A
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US2413125A
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US2594921A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-16 | 1959-07-18 | 1960-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-16 | 1963-07-18 | 1964-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-16 | 1967-07-18 | 1968-01-17 | $7700.00 | Window Closed / Lapsed |