Patent US386033A successfully refreshed from Google Patents.
Patent US2800946A successfully refreshed from Google Patents.
US2800946A
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Laminating method and apparatus
Assignee: Champion Paper and Fibre Co
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Filing: 1953-01-29
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Granted: 1957-07-30
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Expires: 1973-01-29
Abstract
No abstract record available.
Inventors
- 👤 Raymond A Steffen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:59
CPC Classifications
D; D21; D21H; D21H27/00; D21H27/30; D21H27/32; B; B32; B32B; B32B37/00; B32B37/0046; B32B37/0053; B32B37/12; B32B37/1284; B32B2309/00; B32B2309/14; B32B2317/00; B32B2317/12; B32B37/14; B32B37/16; B32B37/20; Y; Y10; Y10T; Y10T156/00; Y10T156/17; Y10T156/1702; Y10T156/1712; Y10T156/1722; Y10T156/1727; Y10T156/1732
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1986961A
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US2136739A
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GB515011A
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US2330530A
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US2334485A
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US2433965A
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US2428385A
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US2635509A
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US2597006A
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US2680468A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-29 | 1961-01-28 | 1961-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-29 | 1965-01-28 | 1965-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-29 | 1969-01-28 | 1969-07-30 | $7700.00 | Window Closed / Lapsed |