US3475956A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for detecting holes in a moving web
Assignee: NewPage Wisconsin System Inc
•
Filing: 1967-12-01
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Granted: 1969-11-04
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Expires: 1987-12-01
Abstract
No abstract record available.
Inventors
- 👤 Arthur C Langlois
- 👤 Paul D Ziegenhagen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:23
CPC Classifications
G; G01; G01N; G01N19/00; G01N19/08; D; D06; D06H; D06H3/00; D06H3/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1604138A
Cited
US2694911A
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US3111026A
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US3115037A
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US3201985A
Cited
US3348313A
Cited
US3352157A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-03 | 1973-05-05 | 1973-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-03 | 1977-05-05 | 1977-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-03 | 1981-05-05 | 1981-11-04 | $7700.00 | Window Closed / Lapsed |