US3012140A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for measuring the thickness of a coating on a base material
Assignee: United States Steel Corp
•
Filing: 1959-01-28
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Granted: 1961-12-05
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Expires: 1979-01-28
Abstract
No abstract record available.
Inventors
- 👤 George E Pellissier
- 👤 Bartholomew G Reisdorf
- 👤 Everett E Wicker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:16
CPC Classifications
G; G01; G01N; G01N23/00; G01N23/02; G01N23/06; G01N23/16; G01N23/22; G01N23/223; G01N2223/00; G01N2223/07; G01N2223/076
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB506022A
Cited
US2542022A
Cited
US2647214A
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US2763784A
Cited
US2829262A
Cited
US2848624A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-04 | 1965-06-05 | 1965-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-04 | 1969-06-05 | 1969-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-04 | 1973-06-05 | 1973-12-05 | $7700.00 | Window Closed / Lapsed |