US2794736A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rosin sized paper prepared from cyanoalkylated wood pulp and method of producing same
Assignee: Monsanto Chemicals Ltd
•
Filing: 1953-12-01
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Granted: 1957-06-04
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Expires: 1973-12-01
Abstract
No abstract record available.
Inventors
- 👤 Oscar P Cohen
- 👤 John F Heaps
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:09
CPC Classifications
D; D21; D21H; D21H11/00; D21H11/16; D21H11/20; D21H17/00; D21H17/62; D21H17/63; D21H17/66
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
29 words
HARD SIZED PAPER PREPARED FROM CYANOALKYLATED WOOD PULP AND SIZED WITH A ROSIN SIZE AND AN ALUMINUM SALT SELECTED FROM THE GROUP CONSISTING OF ALUMINUM SULFATE AND ALUMINUM CHLORIDE.
References Cited (Backward Citations)
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US2011914A
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US2038679A
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US2332049A
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US2375847A
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US2535690A
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US2533145A
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US2684300A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-03 | 1960-12-03 | 1961-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-03 | 1964-12-03 | 1965-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-03 | 1968-12-03 | 1969-06-04 | $7700.00 | Window Closed / Lapsed |