Patent US3382140A successfully refreshed from Google Patents.
US3382140A
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US
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Process for fibrillating cellulosic fibers and products thereof
Assignee: Fort James Corp
•
Filing: 1966-12-30
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Granted: 1968-05-07
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Expires: 1986-12-30
Abstract
No abstract record available.
Inventors
- 👤 John T Henderson
- 👤 Robert E Linde
- 👤 Walter G Meyer
- 👤 William B West
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:35
CPC Classifications
D; D21; D21D; D21D1/00; D21D1/20; D21D1/30; Y; Y10; Y10S; Y10S264/00; Y10S264/47
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1881419A
Cited
US2717195A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-07 | 1971-11-06 | 1972-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-07 | 1975-11-06 | 1976-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-07 | 1979-11-06 | 1980-05-07 | $7700.00 | Window Closed / Lapsed |