US2494607A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical pyrometer
Assignee: Saint Gobain Quartz SAS
•
Filing: 1945-12-29
•
Granted: 1950-01-17
•
Expires: 1965-12-29
Abstract
No abstract record available.
Inventors
- 👤 Bouchet Georges
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:12
CPC Classifications
G; G01; G01J; G01J1/00; G01J1/10; G01J1/20; G01J1/34; G01J1/36; G01J5/00; G01J5/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1788849A
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US1672671A
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GB346620A
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US1976461A
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US1970103A
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US2096323A
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US2244732A
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US2349656A
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US2402926A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-16 | 1953-07-18 | 1954-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-16 | 1957-07-18 | 1958-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-16 | 1961-07-18 | 1962-01-17 | $7700.00 | Window Closed / Lapsed |