US2782133A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of impregnating cellulosic material halogeno-nitrides of phosphorus
Assignee: Compagnie Francaise des Matieres Colorantes SARL
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Filing: 1954-04-20
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Granted: 1957-02-19
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Expires: 1974-04-20
Abstract
No abstract record available.
Inventors
- 👤 Vallette Pierre Henri Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:42
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/667; D06M15/673; C; C01; C01B; C01B21/00; C01B21/082; C01B21/097; C01B21/098; C01B21/0986; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921; Y10T; Y10T442/00; Y10T442/20; Y10T442/2631; Y10T442/2672; Y10T442/268
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
A PROCESS FOR THE TREATMENT OF A FIBROUS CELLULOSIC MATERIAL WHICH COMPRISES IMPREGNATING THE MATERIAL WITH AN AQUEOUS SOLUTION CONSISTING ESSENTIALLY OF THE WATER SOLUBLE PRODUCTS OF THE REACTION OF ANHYDROUS AMMONIA ON A HALOGENONITRIDE OF PHOSPHORUS, AND THEREAFTER SUBJECTING THE MATERIAL TO A TEMPERATURE BETWEEN 100*C. TO 170*C.
Claim 2
Dependent Claim
49 words
A PROCESS FOR THE TREATMENT OF A FIBROUS CELLULOSIC MATERIAL WHICH COMPRISES IMPREGNATING THE MATERIAL WITH AN AQUEOUS SOLUTION CONSISTING ESSENTIALLY OF THE WATER SOLUBLE PRODUCTS OF THE REACTION OF ANHYDROUS AMMONIA ON A HALOGENONITRIDE OF PHOSPHORUS, AND THEREAFTER SUBJECTING THE MATERIAL TO A TEMPERATURE BETWEEN 100*C. TO 170*C.
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) | 1960-02-19 | 1960-08-20 | 1961-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-19 | 1964-08-20 | 1965-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-19 | 1968-08-20 | 1969-02-19 | $7700.00 | Window Closed / Lapsed |