US3085910A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyvinyl chloral, methods of making the same, and uses thereof
Assignee: Johnson and Johnson
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Filing: 1959-04-20
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Granted: 1963-04-16
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Expires: 1979-04-20
Abstract
No abstract record available.
Inventors
- 👤 Fred H Sexsmith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:40
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/40; D04H1/54; C; C08; C08F; C08F8/00; C08F8/48; C08J; C08J5/00; C08J5/18; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2221; Y10T442/2369; Y10T442/273
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
97 words
A METHOD OF AUTOGENICALLY BONDING A FIBROUS STRUCTURE CONTAINING SYNTHETIC FIBERS SELECTED FROM THE GROUP CONSISTING OF POLYESTER FIBERS, POLYAMIDE FIBERS, VINYL FIBERS AND CELLULOSE ESTER FIBERS, AND SIMULTANEOUSLY IMPROVING THE WATER-RESISTANT PROPERTIES OF SAID FIBROUS STRUCTURE WHICH COMPRISES TREATING SAID FIBROUS STRUCTURE WITH AN AQUEOUS REACTION MIXTURE OF CHLORAL AND POLYVINYL ALCOHOL IN WHICH THE CHLORAL IS PRESENT IN AN AMOUNT GREATER THAN ITS STOICHIOMETRIC RELATION TO THE POLYVINYL ALCOHOL AND DRYING THE FIBROUS STRUCTURE WHEREBY THE SYNTHETIC FIBERS ARE AUTOGENICALLY BONDED TO ADJACENT CONTACTING FIBERS AND THE WATER-RESISTANT PROPERTIES OF THE FIBROUS STRUCTURE ARE IMPROVED.
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) | 1966-04-15 | 1966-10-15 | 1967-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-15 | 1970-10-15 | 1971-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-15 | 1974-10-15 | 1975-04-16 | $7700.00 | Window Closed / Lapsed |