US3565753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Capsule-cellulose fiber units and products made therewith
Assignee: Appvion LLC
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Filing: 1967-07-17
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Granted: 1971-02-23
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Expires: 1987-07-17
Abstract
Abstract THE INVENTION RELATES TO THE ATTACHMENT OF MINUTE CAPSULES TO INDIVIDUAL CELLULOSE FIBERS TO FORM CAPSULE/FIBER UNITS, IN AN EN MASSE PROCESS EMPOLYING AN AQUEOUS POLYMERIC MATERIAL SOLUTION SYSTEM WITH DISPERSED FIBERS AND CAPSULES AND A PHASE SEPARATION STEP THEREIN WITH STIRRING; TO PROCESSES USING THE UNITS; AND TO SHEETS, COATINGS, AND MOLDED PRODUCTS FORMED OF THE UNITS.
Inventors
- 👤 Isidore L Yurkowitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:40
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/124; B41M5/165; B01; B01J; B01J13/00; B01J13/02; B41M5/26; B41M5/28; B41M5/287; D; D21; D21H; D21H11/00; D21H19/00; D21H19/10; D21H27/00; D21H27/30; D21H27/38; D21H11/16; D21H13/00; D21H13/10; D21H13/12; D21H13/18; D21H13/20; D21H13/24; D21H13/26; D21H21/00; D21H21/50; D21H21/52; D21H21/54; Y; Y10; Y10S; Y10S428/00; Y10S428/905; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2984
Claims Analysis
Total Claims: 0
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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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |