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US2624686A
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High wet-strength paper and process of making
Assignee: Mathieson Chemical Corp
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Filing: 1948-11-04
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Granted: 1953-01-06
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Expires: 1968-11-04
Abstract
No abstract record available.
Inventors
- 👤 Kamlet Jonas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:59
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/46; D21H17/47; D21H17/49
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
33 words
A PROCESS OF INCREASING THE WET-STRENGTH OF PAPER WHICH COMPRISES TREATING THE PAPER WITH AN AQUEOUS SOLUTION CONSISTING ESSENTIALLY OF WATER AND A MEMBER OF THE GROUP OF MONOMERS OF THE GENERAL FORMULA:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-06 | 1956-07-07 | 1957-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-06 | 1960-07-07 | 1961-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-06 | 1964-07-07 | 1965-01-06 | $7700.00 | Window Closed / Lapsed |