Patent US3109769A successfully refreshed from Google Patents.
US3109769A
Expired / Lapsed
US
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Process for incorporating resins into paper
Assignee: RAY C MARTIN
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Filing: 1961-07-27
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Granted: 1963-11-05
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Expires: 1981-07-27
Abstract
No abstract record available.
Inventors
- 👤 Ray C Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:34
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/34; D21H17/35; D21H17/03; D21H17/05; D21H17/12; D21H17/46; D21H17/47; D21H17/49; D21H17/51; D21H23/00; D21H23/02; D21H23/04; D21H23/06; D21H23/14; D21H23/18; D21H23/76; D21H23/765
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
A PROCESS FOR DEPOSITING A WATER-DISPERSIBLE RESIN ON CELLULOSE PULP FIBERS COMPRISING FIRST DISPERSING A COUPLING AGENT INTO AN AQUEOUS SUSPENSION OF SAID FIBERS, AND SUBSEQUENTLY DISPERSING SAID RESIN INTO SAID SUSPENSION, SAID COUPLING AGENT CONSISTING ESSENTIALLY OF A WATERSOLUBLE CHROMIUM COORDINATION COMPLEX OF AN ACYCLIC ACIDO CARBOXYLIC ACID.
Claim 2
Dependent Claim
49 words
A PROCESS FOR DEPOSITING A WATER-DISPERSIBLE RESIN ON CELLULOSE PULP FIBERS COMPRISING FIRST DISPERSING A COUPLING AGENT INTO AN AQUEOUS SUSPENSION OF SAID FIBERS, AND SUBSEQUENTLY DISPERSING SAID RESIN INTO SAID SUSPENSION, SAID COUPLING AGENT CONSISTING ESSENTIALLY OF A WATERSOLUBLE CHROMIUM COORDINATION COMPLEX OF AN ACYCLIC ACIDO CARBOXYLIC ACID.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-11-04 | 1967-05-06 | 1967-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-04 | 1971-05-06 | 1971-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-04 | 1975-05-06 | 1975-11-05 | $7700.00 | Window Closed / Lapsed |