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Patent US2859134A successfully refreshed from Google Patents.
US2859134A
Expired / Lapsed
US
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Flame resistant organic textiles and method of production
Assignee: Individual
•
Filing: 1957-04-24
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Granted: 1958-11-04
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Expires: 1977-04-24
Abstract
No abstract record available.
Inventors
- 👤 Wilson A Reeves
- 👤 George L Drake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:03
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/667; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921; Y10T; Y10T442/00; Y10T442/20; Y10T442/2631; Y10T442/2672; Y10T442/268
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A PROCESS OF REDUCING THE FLAMMABILITY OF A CELLULOSIC TEXTILE MATERIAL WHICH COMPRISES IMPREGNATING THE MATERIAL WITH A SOLUTION CONTAINING TRIS(I-AZIRIDINYL) PHOSPHINE OXIDE AND UREA, DRYING THE IMPREGNATED MATERIAL AND THEN IT TO ABOUT FROM 100 TO 160*C. FOR ABOUT FROM 2 TO 10 MINUTES, USING THE LONGER TIME WITH THE LOWER TEMPERATURE.
Claim 2
Dependent Claim
53 words
A PROCESS OF REDUCING THE FLAMMABILITY OF A CELLULOSIC TEXTILE MATERIAL WHICH COMPRISES IMPREGNATING THE MATERIAL WITH A SOLUTION CONTAINING TRIS(I-AZIRIDINYL) PHOSPHINE OXIDE AND UREA, DRYING THE IMPREGNATED MATERIAL AND THEN IT TO ABOUT FROM 100 TO 160*C. FOR ABOUT FROM 2 TO 10 MINUTES, USING THE LONGER TIME WITH THE LOWER TEMPERATURE.
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) | 1961-11-03 | 1962-05-05 | 1962-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-03 | 1966-05-05 | 1966-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-03 | 1970-05-05 | 1970-11-04 | $7700.00 | Window Closed / Lapsed |