US2953480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing fire-retardant nylon fabric
Assignee: Wyeth Holdings LLC
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Filing: 1953-11-18
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Granted: 1960-09-20
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Expires: 1973-11-18
Abstract
No abstract record available.
Inventors
- 👤 Maurice R Burnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:29
CPC Classifications
D; D06; D06M; D06M11/00; D06M11/07; D06M11/11; D06M11/13; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A PROCESS FOR PRODUCING A FIRE-RETARDANT NYLON FABRIC WHICH COMPRISES APPLYING AN AQUEOUS SOLUTION OF 100 PARTS BY WEIGHT OF AMMONIUM BROMIDE AND BETWEEN ABOUT 100 AND ABOUT 500 PARTS OF AN AMINOTRIAZINE-FORMALDEHYDE CONDENSATE TO SAID NYLON FABRIC IN SUFFICIENT QUANITY TO DEPOSIT THEREON ON THE DRY WEIGHT OF THE FABRIC AND CURING BROMIDE BASED ON THE DRY WEIGHT OF THE FABRIC AND CURING THE CONDENSATE TO THE WATER-SOLUBLE STATE BY HEATING THE TREATED FABRIC TO AN ELEVATED TEMPERATURE.
Claim 2
Dependent Claim
79 words
A PROCESS FOR PRODUCING A FIRE-RETARDANT NYLON FABRIC WHICH COMPRISES APPLYING AN AQUEOUS SOLUTION OF 100 PARTS BY WEIGHT OF AMMONIUM BROMIDE AND BETWEEN ABOUT 100 AND ABOUT 500 PARTS OF AN AMINOTRIAZINE-FORMALDEHYDE CONDENSATE TO SAID NYLON FABRIC IN SUFFICIENT QUANITY TO DEPOSIT THEREON ON THE DRY WEIGHT OF THE FABRIC AND CURING BROMIDE BASED ON THE DRY WEIGHT OF THE FABRIC AND CURING THE CONDENSATE TO THE WATER-SOLUBLE STATE BY HEATING THE TREATED FABRIC TO AN ELEVATED TEMPERATURE.
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US2322888A
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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) | 1963-09-20 | 1964-03-21 | 1964-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-20 | 1968-03-21 | 1968-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-20 | 1972-03-21 | 1972-09-20 | $7700.00 | Window Closed / Lapsed |