Patent US2634218A successfully refreshed from Google Patents.
US2634218A
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US
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Method of making a fire-resistant textile material
Assignee: Federal Leather Co
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Filing: 1949-09-13
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Granted: 1953-04-07
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Expires: 1969-09-13
Abstract
No abstract record available.
Inventors
- 👤 Constance W Penn
- 👤 Henry W Trimble
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:29
CPC Classifications
D; D06; D06M; D06M11/00; D06M11/07; D06M11/11; D06M11/22; D06M11/32; D06M11/36; D06M11/47; D06M11/68; D06M11/70; D06M11/71; Y; Y10; Y10S; Y10S428/00; Y10S428/907; Y10S55/00; Y10S55/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A METHOD FOR THE PRODUCTION OF A FLAME-RESISTANT TEXTILE MATERIAL COMPRISING IMPREGNATING THE TEXTILE MATERIAL WITH A WATER SOLUTION OF ANTIMONY TRIFLUORIDE AND A PEPTIZING SALT SELECTED FROM THE GROUP CONSISTING OF SODIUM FLUORIDE, POTASSIUM FLUORIDE, AND AMMONIUM FLUORIDE, TO PREVENT THE FORMATION OF OPALESCENT MATERIAL IN THE SOLUTION ON PROLONGED STANDING, DRYING THE IMPREGNATED TEXTILE MATERIAL, TREATING THE DRIED TEXTILE MATERIAL WITH A WATER SOLUTION OF AN ALKALI CARBONATE TO FORM ANTIMONY TRIOXIDE IN THE TEXTILE MATERIAL, WASHING THE TEXTILE MTERIAL WITH WATER TO REMOVE SOLUBLE SALTS THEREFROM AND DRYING THE TEXTILE MATERIAL.
Claim 2
Independent Claim
94 words
A METHOD FOR THE PRODUCTION OF A FLAME-RESISTANT TEXTILE MATERIAL COMPRISING IMPREGNATING THE TEXTILE MATERIAL WITH A WATER SOLUTION OF ANTIMONY TRIFLUORIDE AND A PEPTIZING SALT SELECTED FROM THE GROUP CONSISTING OF SODIUM FLUORIDE, POTASSIUM FLUORIDE, AND AMMONIUM FLUORIDE, TO PREVENT THE FORMATION OF OPALESCENT MATERIAL IN THE SOLUTION ON PROLONGED STANDING, DRYING THE IMPREGNATED TEXTILE MATERIAL, TREATING THE DRIED TEXTILE MATERIAL WITH A WATER SOLUTION OF AN ALKALI CARBONATE TO FORM ANTIMONY TRIOXIDE IN THE TEXTILE MATERIAL, WASHING THE TEXTILE MTERIAL WITH WATER TO REMOVE SOLUBLE SALTS THEREFROM AND DRYING THE TEXTILE MATERIAL.
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) | 1956-04-06 | 1956-10-06 | 1957-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-06 | 1960-10-06 | 1961-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-06 | 1964-10-06 | 1965-04-07 | $7700.00 | Window Closed / Lapsed |