US2967937A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for measuring thickness
Assignee: Texaco Inc
•
Filing: 1955-12-16
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Granted: 1961-01-10
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Expires: 1975-12-16
Abstract
No abstract record available.
Inventors
- 👤 Alexander S Mckay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:19
CPC Classifications
G; G01; G01N; G01N23/00; G01N23/22; G01N23/221; G01N23/222; E; E21; E21B; E21B47/00; E21B47/08; E21B47/085; G01V; G01V5/00; G01V5/04; G01V5/08; G01V5/10; G01V5/107; G01N2223/00; G01N2223/03; G01N2223/04; G01N2223/10; G01N2223/106; G01N2223/1066; G01N2223/30; G01N2223/302; G01N2223/60; G01N2223/633
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2231577A
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US2425533A
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US2425512A
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US2486845A
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US2652496A
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US2769918A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-10 | 1964-07-11 | 1965-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-10 | 1968-07-11 | 1969-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-10 | 1972-07-11 | 1973-01-10 | $7700.00 | Window Closed / Lapsed |