US2692837A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition and process for rendering textile fabrics water-repellent
Assignee: GAF Chemicals Corp
•
Filing: 1950-02-25
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Granted: 1954-10-26
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Expires: 1970-02-25
Abstract
No abstract record available.
Inventors
- 👤 James M Cross
- 👤 Raymond L Mayhew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:48
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/402; D06M13/432; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2164
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
47 words
A PROCESS FOR RENDERING TEXTILE MATERIALS WATER-REPELLENT, WHICH COMPRISES IMPREGNATING THE TEXTILE MATERIAL WITH AN AQUEOUS DISPERSION CONTAINING 1 TO 10% OF A COMPOSITION CONSISTING ESSENTIALLY OF A HIGHER FATTY ACID N-METHYLOLAMIDE, AND AS THE DISPERSING AGENT THEREFOR, A QUATERNARY NITROGEN BASE SALT HAVING THE GENERAL FORMULA
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US2314277A
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US2313742A
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US2431202A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-10-25 | 1958-04-26 | 1958-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-25 | 1962-04-26 | 1962-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-25 | 1966-04-26 | 1966-10-26 | $7700.00 | Window Closed / Lapsed |