US2649715A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature measuring and indicating apparatus
Assignee: Eastman Oil Well Survey Co
•
Filing: 1947-05-08
•
Granted: 1953-08-25
•
Expires: 1967-05-08
Abstract
No abstract record available.
Inventors
- 👤 Ralph W Goble
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:51
CPC Classifications
G; G01; G01K; G01K1/00; G01K1/02; G01K1/022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2365706A
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US955191A
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US1593024A
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US1961965A
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US2050128A
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US2316942A
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US2191765A
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US2277427A
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US2455520A
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US2517455A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-24 | 1957-02-23 | 1957-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-24 | 1961-02-23 | 1961-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-24 | 1965-02-23 | 1965-08-25 | $7700.00 | Window Closed / Lapsed |