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Patent US2971267A successfully refreshed from Google Patents.
US2971267A
Expired / Lapsed
US
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Fluid supported web-drying device
Assignee: Library and Archives Canada
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Filing: 1957-07-15
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Granted: 1961-02-14
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Expires: 1977-07-15
Abstract
No abstract record available.
Inventors
- 👤 Martin J Berlyn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:52
CPC Classifications
D; D21; D21F; D21F5/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1556057A
Cited
US1523081A
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US1847915A
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US2012115A
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US2037806A
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US2560341A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-02-14 | 1964-08-15 | 1965-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-14 | 1968-08-15 | 1969-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-14 | 1972-08-15 | 1973-02-14 | $7700.00 | Window Closed / Lapsed |