US3154430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impregnated web and method and composition for making same
Assignee: Fort James Corp
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Filing: 1960-03-14
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Granted: 1964-10-27
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Expires: 1980-03-14
Abstract
No abstract record available.
Inventors
- 👤 Paul M Goodloe
- 👤 Louis P Mackinnon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:07
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/34; D21H17/35; D21H17/46; D21H17/47; D21H17/48
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
66 words
A NON-TACKY IMPREGNATED SHEET COMPRISING A WEB OF NATURALLY-OCCURRING CELLULOSIC PAPERMAKING FIBERS AND FROM 10% TO 100%, BY WEIGHT OF THE FIBERS, OF A CURED IMPREGNANT COMPRISING NATURAL RUBBER, FROM 5% TO 33% BY WEIGHT, BASED ON THE WEIGHT OF THE RUBBER, OF STYRENE POLYMER PARTICLES DISPERSED IN SAID RUBBER, AND FROM 1.5% TO 5%, BY WEIGHT OF THE RUBBER, OF AN ALKALI-CONDENSED THERMOSET PHENOLIC RESIN.
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) | 1967-10-27 | 1968-04-27 | 1968-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-27 | 1972-04-27 | 1972-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-27 | 1976-04-27 | 1976-10-27 | $7700.00 | Window Closed / Lapsed |