Patent US2970339A successfully refreshed from Google Patents.
US2970339A
Expired / Lapsed
US
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Calender roll having adjustable crown
Assignee: Individual
•
Filing: 1957-09-12
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Granted: 1961-02-07
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Expires: 1977-09-12
Abstract
No abstract record available.
Inventors
- 👤 John M Hausman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:33
CPC Classifications
D; D21; D21G; D21G1/00; D21G1/02; D21G1/0206; B; B21; B21B; B21B27/00; B21B27/02; B21B27/03; B21B27/05; B21B29/00; B29; B29B; B29B7/00; B29B7/30; B29B7/58; B29B7/62
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2732591A
Cited
US2074410A
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US2108071A
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US2144793A
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US2206410A
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US2648122A
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US2673168A
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CH314726A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-02-07 | 1964-08-08 | 1965-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-07 | 1968-08-08 | 1969-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-07 | 1972-08-08 | 1973-02-07 | $7700.00 | Window Closed / Lapsed |