US3057253A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical pyrometer with photoelectric detector
Assignee: Individual
•
Filing: 1958-09-12
•
Granted: 1962-10-09
•
Expires: 1978-09-12
Abstract
No abstract record available.
Inventors
- 👤 Jr C Peter Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:23
CPC Classifications
G; G01; G01J; G01J5/00; G01J5/02; G01J5/08; G01J5/0803; G01J5/0805
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1561583A
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US1908977A
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US1970103A
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US2096323A
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US2213904A
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US2469115A
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US2572488A
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US2798961A
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US2807976A
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US2898176A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-08 | 1966-04-09 | 1966-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-08 | 1970-04-09 | 1970-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-08 | 1974-04-09 | 1974-10-09 | $7700.00 | Window Closed / Lapsed |