US2964377A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flameproofing reaction product and use of same
Assignee: Victor Chemical Works
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Filing: 1957-02-18
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Granted: 1960-12-13
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Expires: 1977-02-18
Abstract
No abstract record available.
Inventors
- 👤 Jr James R Costello
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:04
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/667; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2631; Y10T442/2672; Y10T442/268
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
45 words
A PRODUCT HAVING FLAMEPROOFING PROPERTIES PRODUCED BY A PROCESS COMPRISING TREATMENT AN ANHYDROUS AMMONIA-PHOSPHORUS PENTOXIDE REACTION PRODUCT WITH AN EXCESS OF CONCENTRATED AMMONIUM HYDROXIDE SOLUTION, SAID EXCESS CAUSING THE FORMATION OF A SEPARATE LAYER OF VISCOUS LIQUID REACTION PRODUCT, AND REMOVING SAID VISCOUS LIQUID LAYER.
Claim 2
Dependent Claim
45 words
A PRODUCT HAVING FLAMEPROOFING PROPERTIES PRODUCED BY A PROCESS COMPRISING TREATMENT AN ANHYDROUS AMMONIA-PHOSPHORUS PENTOXIDE REACTION PRODUCT WITH AN EXCESS OF CONCENTRATED AMMONIUM HYDROXIDE SOLUTION, SAID EXCESS CAUSING THE FORMATION OF A SEPARATE LAYER OF VISCOUS LIQUID REACTION PRODUCT, AND REMOVING SAID VISCOUS LIQUID LAYER.
Claim 3
Dependent Claim
21 words
A PRODUCT COMPRISING CELLULOSE AND THE PRODUCT OF CLAIM 1 IN AN AMOUNT SUFFICIENT TO ACT AS A FIRE RETARDANT THEREFOR.
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) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |