Patent US3842007A successfully refreshed from Google Patents.
US3842007A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fibrous cellulose acetate filter material
Assignee: E & J Winery
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Filing: 1973-02-15
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Granted: 1974-10-15
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Expires: 1993-02-15
Abstract
Abstract 1. A FIBROUS CELLULOSE ACETATE RESEMBLING ASBESTOS IN FIBROUS STRUCTURE AND COMPRISING ROD-SHAPED FIBERS INTERMINGLED WITH FULFFY FILAMENTS SAND FIVERS AND FILAMENTS HAVING DIAMETERS OF ABOUT 0.5 MICRONS TO ABOUT 50 MICRONS, AND A SURFACE AREA OF ABOUT 35 M.2/G. TO ABOUT 55 M.2/G., SAID FIBROUS CELLUSE ACETATE BEING WET WITH AT LEAST ABOUT 70% BY WEIGHT NONSOLVENT FOR CELLULOSE ACETATE.
Inventors
- 👤 A Caputi
- 👤 T Wong
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:33
CPC Classifications
C; C08; C08B; C08B3/00; C08B3/22; A; A23; A23L; A23L2/00; A23L2/70; A23L2/72; B; B01; B01D; B01D39/00; B01D39/14; B01D39/16; B01D39/18; D; D01; D01F; D01F2/00; D01F2/24; D01F2/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A FIBROUS CELLULOSE ACETATE RESEMBLING ASBESTOS IN FIBROUS STRUCTURE AND COMPRISING ROD-SHAPED FIBERS INTERMINGLED WITH FULFFY FILAMENTS SAND FIVERS AND FILAMENTS HAVING DIAMETERS OF ABOUT 0.5 MICRONS TO ABOUT 50 MICRONS, AND A SURFACE AREA OF ABOUT 35 M.2/G. TO ABOUT 55 M.2/G., SAID FIBROUS CELLUSE ACETATE BEING WET WITH AT LEAST ABOUT 70% BY WEIGHT NONSOLVENT FOR CELLULOSE ACETATE.
Claim 2
Dependent Claim
60 words
A FIBROUS CELLULOSE ACETATE RESEMBLING ASBESTOS IN FIBROUS STRUCTURE AND COMPRISING ROD-SHAPED FIBERS INTERMINGLED WITH FULFFY FILAMENTS SAND FIVERS AND FILAMENTS HAVING DIAMETERS OF ABOUT 0.5 MICRONS TO ABOUT 50 MICRONS, AND A SURFACE AREA OF ABOUT 35 M.2/G. TO ABOUT 55 M.2/G., SAID FIBROUS CELLUSE ACETATE BEING WET WITH AT LEAST ABOUT 70% BY WEIGHT NONSOLVENT FOR CELLULOSE ACETATE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-14 | 1978-04-15 | 1978-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-14 | 1982-04-15 | 1982-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-14 | 1986-04-15 | 1986-10-15 | $7700.00 | Window Closed / Lapsed |