US3018663A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Furnace lining temperature-thickness measuring apparatus
Assignee: United States Steel Corp
•
Filing: 1956-09-13
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Granted: 1962-01-30
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Expires: 1976-09-13
Abstract
No abstract record available.
Inventors
- 👤 George E Dunlop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:27
CPC Classifications
G; G01; G01K; G01K1/00; G01K1/08; G01B; G01B7/00; G01B7/02; G01B7/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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FR1057575A
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US2798377A
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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) | 1965-01-29 | 1965-07-31 | 1966-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-29 | 1969-07-31 | 1970-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-29 | 1973-07-31 | 1974-01-30 | $7700.00 | Window Closed / Lapsed |