US2817602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shrinkproofing of wool with epoxy resins and polyalkyleneimines
Assignee: Individual
•
Filing: 1956-09-18
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Granted: 1957-12-24
•
Expires: 1976-09-18
Abstract
No abstract record available.
Inventors
- 👤 Jr Clay E Pardo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:18
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/55; Y; Y10; Y10S; Y10S424/00; Y10S424/02; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2938; Y10T428/2971
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
A PROCESS FOR SHRINKPROOFING PROTEIN FIBERS WHICH COMPRISES IMPREGNATING THE FIBERS WITH AN EMULSION CONTAINING POLYALKYLENEIMINE AND AN EPOXY RESIN AND THEREAFTER CURING THE IMPREGNATED FIBER AT A TEMPERATURE FROM ABOUT 50 TO ABOUT 100*C.
Claim 2
Dependent Claim
35 words
A PROCESS FOR SHRINKPROOFING PROTEIN FIBERS WHICH COMPRISES IMPREGNATING THE FIBERS WITH AN EMULSION CONTAINING POLYALKYLENEIMINE AND AN EPOXY RESIN AND THEREAFTER CURING THE IMPREGNATED FIBER AT A TEMPERATURE FROM ABOUT 50 TO ABOUT 100*C.
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) | 1960-12-23 | 1961-06-24 | 1961-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-23 | 1965-06-24 | 1965-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-23 | 1969-06-24 | 1969-12-24 | $7700.00 | Window Closed / Lapsed |