US2933367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame-resistant cellulosic textiles and process of reacting cellulose ether textiles with aziridinyl phosphine oxide or sulfide
Assignee: Individual
•
Filing: 1957-10-29
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Granted: 1960-04-19
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Expires: 1977-10-29
Abstract
No abstract record available.
Inventors
- 👤 Wilson A Reeves
- 👤 Jr George L Drake
- 👤 John D Guthrie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 01:06
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/487; Y; Y10; Y10S; Y10S8/00; Y10S8/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
31 words
FLAME-RESISTANT CELLULOSIC TEXTILE MATERIALS COMPOSED OF CHEMICALLY MODIFIED CELLULOSE IN WHICH NITROGEN ATOMS ARE ATTACHED DIRECTLY TO PENTAVALENT PHOSPHORUS ATOMS IN THE CHARACTERISTIC REOCCURRING STRUCTURE SELECTED FROM THE GROUP CONSISTING OF
Claim 2
Dependent Claim
31 words
FLAME-RESISTANT CELLULOSIC TEXTILE MATERIALS COMPOSED OF CHEMICALLY MODIFIED CELLULOSE IN WHICH NITROGEN ATOMS ARE ATTACHED DIRECTLY TO PENTAVALENT PHOSPHORUS ATOMS IN THE CHARACTERISTIC REOCCURRING STRUCTURE SELECTED FROM THE GROUP CONSISTING OF
Claim 3
Dependent Claim
54 words
A PROCESS OF PRODUCING FLAME-RESISTANT CHEMICALLY MODIFIED CELLULOSIC EXTILE MATERIALS WHICH COMPRISES WETTING A CELLULOSE DERIVATIVE FABRIC, IN WHICH ABOUT FROM ONE INORGANIC ACID GROUP PER THIRTY ANDROGLUCOSE UNITS TO ABOUT ONE INORGANIC ACID GROUP PER FIVE ANHYDROGLUCOSE UNITS IS CONNECTED TO THE CELLULOSE MOLECULE IN A STRUCTURE SELECTED FROM THE GROUP CONSISTING OF
Claim 4
Dependent Claim
54 words
A PROCESS OF PRODUCING FLAME-RESISTANT CHEMICALLY MODIFIED CELLULOSIC EXTILE MATERIALS WHICH COMPRISES WETTING A CELLULOSE DERIVATIVE FABRIC, IN WHICH ABOUT FROM ONE INORGANIC ACID GROUP PER THIRTY ANDROGLUCOSE UNITS TO ABOUT ONE INORGANIC ACID GROUP PER FIVE ANHYDROGLUCOSE UNITS IS CONNECTED TO THE CELLULOSE MOLECULE IN A STRUCTURE SELECTED FROM THE GROUP CONSISTING OF
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) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |