US2512355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-ray thickness gauge
Assignee: Westinghouse Electric Corp
•
Filing: 1947-06-30
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Granted: 1950-06-20
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Expires: 1967-06-30
Abstract
No abstract record available.
Inventors
- 👤 Fitz-Hugh B Marshall
- 👤 John W Coltman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:49
CPC Classifications
G; G01; G01N; G01N23/00; G01N23/02; G01N23/06; G01N23/16; G01N23/083
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1788401A
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US2181568A
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US2193850A
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US2266154A
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US2370692A
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US2337932A
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US2401404A
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US2412423A
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US2432227A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-19 | 1953-12-19 | 1954-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-19 | 1957-12-19 | 1958-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-19 | 1961-12-19 | 1962-06-20 | $7700.00 | Window Closed / Lapsed |