US3079217A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shrinkproofing wool with polycarbonates
Assignee: Individual
•
Filing: 1961-04-11
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Granted: 1963-02-26
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Expires: 1981-04-11
Abstract
No abstract record available.
Inventors
- 👤 Robert E Whitfield
- 👤 Lowell A Miller
- 👤 William L Wasley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:41
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/507; D06M15/513; Y; Y10; Y10S; Y10S8/00; Y10S8/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A PROCESS FOR TREATING A FIBROUS MATERIAL WHICH COMPRISES SERIALLY IMPREGNATING A FIBROUS MATERIAL WITH TWO SOLUTIONS, ONE SOLUTION CONTAINING ONE MEMBER OF A PAIR OF COMPLEMENTARY, DIRECT-ACTING, ORGANIC, POLYCARBONATE-FORMING INTERMEDIATES IN A FIRST SOLVENT, THE OTHER SOLUTION CONTAINING THE COMPLEMENTARY MEMBER OF SAID PAIR OF COMPLEMENTARY, DIRECT-ACTING, ORGANIC, POLYCARBONATE-FORMING INTERMEDIATES IN A SECOND SOLVENT, SAID FIRST AND SECOND SOLVENTS BEING SUBSTANTIALLY MUTUALLY IMMISCIBLE, THE SAID PAIR OF INTERMEDIATES REACTING RAPIDLY UNDER SAID CONDITIONS TO FORM IN SITU ON THE FIBERS A RESINOUS POLYCARBONATE.
Claim 2
Dependent Claim
84 words
A PROCESS FOR TREATING A FIBROUS MATERIAL WHICH COMPRISES SERIALLY IMPREGNATING A FIBROUS MATERIAL WITH TWO SOLUTIONS, ONE SOLUTION CONTAINING ONE MEMBER OF A PAIR OF COMPLEMENTARY, DIRECT-ACTING, ORGANIC, POLYCARBONATE-FORMING INTERMEDIATES IN A FIRST SOLVENT, THE OTHER SOLUTION CONTAINING THE COMPLEMENTARY MEMBER OF SAID PAIR OF COMPLEMENTARY, DIRECT-ACTING, ORGANIC, POLYCARBONATE-FORMING INTERMEDIATES IN A SECOND SOLVENT, SAID FIRST AND SECOND SOLVENTS BEING SUBSTANTIALLY MUTUALLY IMMISCIBLE, THE SAID PAIR OF INTERMEDIATES REACTING RAPIDLY UNDER SAID CONDITIONS TO FORM IN SITU ON THE FIBERS A RESINOUS POLYCARBONATE.
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) | 1966-02-25 | 1966-08-27 | 1967-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-25 | 1970-08-27 | 1971-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-25 | 1974-08-27 | 1975-02-26 | $7700.00 | Window Closed / Lapsed |