US3519922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for detecting abrupt change in the thickness of sheet material
Assignee: Nash and Harrison Ltd
•
Filing: 1966-12-05
•
Granted: 1970-07-07
•
Expires: 1986-12-05
Abstract
No abstract record available.
Inventors
- 👤 Paul Nash
- 👤 Gordon Brian Hick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:47
CPC Classifications
G; G01; G01B; G01B7/00; G01B7/12; G01B7/125; G01B7/02; G01B7/06; G01B7/08; G01B7/087; G01N; G01N27/00; G01N27/02; G01N27/22; G01N27/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3122956A
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US1878109A
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US1984166A
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US2222221A
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US2439047A
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US2542372A
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GB797399A
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US2948850A
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US3009101A
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US3237098A
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US3039051A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-06 | 1974-01-05 | 1974-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-06 | 1978-01-05 | 1978-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-06 | 1982-01-05 | 1982-07-07 | $7700.00 | Window Closed / Lapsed |