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US3687720A
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US
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Process for flameproofing textile material
Assignee: Individual
•
Filing: 1969-11-26
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Granted: 1972-08-29
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Expires: 1989-11-26
Abstract
Abstract DESCRIBES A PROCESS FOR FLAMEPROOFING TEXTILES IN WHICH SUBSTANTIALLY ANHYDROUS ZINC CHLORIDE IN SUBSTANTIALLY ANHYDROUS SOLVENTS IS USED AS THE FLAMEPROOFING MATERIAL, THE SUBSTANTIALLY ANHYDROUS FLAMEPROOFING COMPOSITION PREVENTS CREASING AND SHRINKING OF THE TREATED TEXTILES.
Inventors
- 👤 Werner Grunewalder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:52
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/08; D06M11/00; D06M11/07; D06M11/11; D06M11/155; D06M13/10; D06M13/224
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-29 | 1976-02-28 | 1976-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-29 | 1980-02-28 | 1980-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-29 | 1984-02-28 | 1984-08-29 | $7700.00 | Window Closed / Lapsed |