Patent US3466136A successfully refreshed from Google Patents.
US3466136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shrinkproofing of wool
Assignee: United States Department of Agriculture
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Filing: 1964-03-17
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Granted: 1969-09-09
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Expires: 1984-03-17
Abstract
No abstract record available.
Inventors
- 👤 William L Wasley
- 👤 Robert E Whitfield
- 👤 Lowell A Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:50
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/507; D06M15/59
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
IN THE PROCESS WHEREIN FIBROUS TEXTILE MATERIAL HAVING DISULPHIDE BONDS IS SUBJECTED TO SERIAL IMPREGNATION WITH (I) A SOLUTION OF A DIAMINE IN WATER AND WITH (II) A SOLUTION OF A BIFUNCTIONAL ORGANIC COMPOUND CAPABLE OF FORMING A POLYMER WITH SAID DIAMINE, THE SAID COMPOUND BEING DISSOLVED IN AN INERT, VOLATILE, WATER-IMMISCIBLE SOLVENT, THE IMPROVEMENT WHICH COMPRISES INCORPORATING IN SAID SOLUTION (I) A SULPHUR-CONTAINING, REDUCTIVE, DISULPHIDE-SPLITTING AGENT.
Claim 2
Dependent Claim
67 words
IN THE PROCESS WHEREIN FIBROUS TEXTILE MATERIAL HAVING DISULPHIDE BONDS IS SUBJECTED TO SERIAL IMPREGNATION WITH (I) A SOLUTION OF A DIAMINE IN WATER AND WITH (II) A SOLUTION OF A BIFUNCTIONAL ORGANIC COMPOUND CAPABLE OF FORMING A POLYMER WITH SAID DIAMINE, THE SAID COMPOUND BEING DISSOLVED IN AN INERT, VOLATILE, WATER-IMMISCIBLE SOLVENT, THE IMPROVEMENT WHICH COMPRISES INCORPORATING IN SAID SOLUTION (I) A SULPHUR-CONTAINING, REDUCTIVE, DISULPHIDE-SPLITTING AGENT.
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) | 1972-09-08 | 1973-03-10 | 1973-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-08 | 1977-03-10 | 1977-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-08 | 1981-03-10 | 1981-09-09 | $7700.00 | Window Closed / Lapsed |