US3783093A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fibrous polyethylene materials
Assignee: Wyeth Holdings LLC
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Filing: 1971-05-17
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Granted: 1974-01-01
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Expires: 1991-05-17
Abstract
Abstract AN EXTENSIVELY FIBRILLATED THERMOPLASTIC RESIN MATERIAL AND METHOD FOR PREPARING THE SAME IS GIVEN WHEREBY A SOLID PARTICULATE THERMOPLASTIC RESIN WHICH IS INSOLUBLE IN A SELECTED LEACHING SOLVENT IS MIXED AND FIBRILLATED UNDER HEAT AND PRESSURE WITH ANOTHER THERMOPLASTIC RESIN WHICH IS SOLUBLE IN THE SELECTED LEACHING SOLVENT. FOLLOWING FIBRILLATION, THE RESIN MIXTURE IS SUBSEQUENTLY CONTACTED WITH THE SELECTED LEACHING SOLVENT TO REMOVE THE SOLUBLE RESIN THEREBY LEAVING AN EXTENSIVELY FIBRILLATED THERMOPLASTIC RESIN PRODUCT WHICH MAY BE USED AS A SYNTHETIC FABRIC, AND IN OTHER INDUSTRIAL APPLICATIONS.
Inventors
- 👤 L Gallacher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:28
CPC Classifications
C; C08; C08L; C08L25/00; C08L25/02; C08L25/04; C08L25/06; A; A61; A61L; A61L15/00; A61L15/16; A61L15/22; A61L15/225; C08J; C08J9/00; C08J9/26; C08L33/00; C08L33/04; C08L33/06; C08L33/08; C08L33/10; C08L33/12; D; D01; D01D; D01D5/00; D01D5/40; D04; D04H; D04H13/00; C08L2205/00; C08L2205/03; C08L2205/035; C08L23/00; C08L23/02; C08L23/04; C08L23/06; C08L23/10; C08L23/18; C08L23/20; C08L27/00; C08L27/02; C08L27/12; C08L27/18; C08L67/00; C08L71/00; C08L71/02; C08L75/00; C08L75/04; C08L77/00; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/268; Y10T442/00; Y10T442/60; Y10T442/608; Y10T442/614
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) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |