US3671304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for flameproofing and resultant product
Assignee: Sandoz Inc
•
Filing: 1970-04-23
•
Granted: 1972-06-20
•
Expires: 1990-04-23
Abstract
Abstract THERE IS PROVIDED A NOVEL TYPE OF FIREPROOFING COMPOSITION FOR CELLULOSIC AND SYNTHETIC MATERIALS SUITABLE FOR TEXTILE USE AND METHODS OF PREPARING AND UTILIZING SAID COMPOSITIONS. THE NOVEL COMPOSITIONS ARE PREPARED BY MIXING EITHER A POLYALKYLENIMINE OR THE REACTION PRODUCT OF A POLYALKYLENIMINE WITH AN AMIDE, WITH A HALO ALKYL PHOSPHATE ESTER UNDER AQUEOUS CONDITIONS. THE MATERIALS ARE PROOFED BY IMMERSION INTO AN AQUEOUS SOLUTION, SUSPENSION OR EMULSION OF THE PROOFING COMPOSITION AND DRIED AT AN ELEVATED TEMPERATURE.
Inventors
- 👤 Vladimir Mischutin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:44
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/61; C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/091; C08; C08G; C08G73/00; C08G73/02; C08G73/0206; C08G73/0213; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2965; Y10T428/2967; Y10T428/2969; Y10T442/00; Y10T442/20; Y10T442/2631; Y10T442/2672; Y10T442/268
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |