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US2484623A
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Thickness measurement
Assignee: AT&T Inc
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Filing: 1944-10-17
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Granted: 1949-10-11
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Expires: 1964-10-17
Abstract
No abstract record available.
Inventors
- 👤 Raymond A Heising
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:58
CPC Classifications
G; G01; G01B; G01B17/00; G01B17/02; G01N; G01N2291/00; G01N2291/04; G01N2291/048
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1990085A
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US1980171A
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US2105479A
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US2164125A
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US2433963A
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US2439131A
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US2431233A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-10 | 1953-04-11 | 1953-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-10 | 1957-04-11 | 1957-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-10 | 1961-04-11 | 1961-10-11 | $7700.00 | Window Closed / Lapsed |