Patent US2962756A successfully refreshed from Google Patents.
Patent US3395070A successfully refreshed from Google Patents.
US3395070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper product containing cellulose graft polymers
Assignee: Continental Group Inc
•
Filing: 1964-12-03
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Granted: 1968-07-30
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Expires: 1984-12-03
Abstract
No abstract record available.
Inventors
- 👤 James W Adams
- 👤 Henry W Hoftiezer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:48
CPC Classifications
D; D21; D21H; D21H5/00; D21H5/12; D21H5/14; D21H5/141; D21H5/143; B; B01; B01J; B01J41/00; B01J41/08; B01J41/12; B01J41/16; C; C08; C08F; C08F251/00; C08F251/02; C08F8/00; C08F8/12; C08F8/30; C08F8/32; D21H11/00; D21H11/02; D21H11/06; D21H11/16; D21H11/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
A PAPER PRODUCT CONSISTING ESSENTIALLY OF A MAJOR PROPORTION OF PAPER-MAKING FIBERS AND A MINOR PROPORTION OF WOOD FIBERS HAVING A PARTIALLY HYDROLYZED POLYMER DEPOSITED THEREIN, SAID POLYMER BEING FORMED BY IN SITU POLYMERIZATION OF AN OLEFINICALLY UNSATURATED MONOMER CONTAINING HYDROLYZABLE FUNCTIONAL GROUPS FOLLOWED BY HYDROLYSIS OF AT LEAST PART OF SAID HYDROLZABLE FUNCTIONAL GROUPS.
Claim 2
Dependent Claim
55 words
A PAPER PRODUCT CONSISTING ESSENTIALLY OF A MAJOR PROPORTION OF PAPER-MAKING FIBERS AND A MINOR PROPORTION OF WOOD FIBERS HAVING A PARTIALLY HYDROLYZED POLYMER DEPOSITED THEREIN, SAID POLYMER BEING FORMED BY IN SITU POLYMERIZATION OF AN OLEFINICALLY UNSATURATED MONOMER CONTAINING HYDROLYZABLE FUNCTIONAL GROUPS FOLLOWED BY HYDROLYSIS OF AT LEAST PART OF SAID HYDROLZABLE FUNCTIONAL GROUPS.
References Cited (Backward Citations)
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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) | 1971-07-30 | 1972-01-29 | 1972-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-30 | 1976-01-29 | 1976-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-30 | 1980-01-29 | 1980-07-30 | $7700.00 | Window Closed / Lapsed |