US2876117A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame-retarding of textiles
Assignee: EIDP Inc
•
Filing: 1955-12-01
•
Granted: 1959-03-03
•
Expires: 1975-12-01
Abstract
No abstract record available.
Inventors
- 👤 Jackson Julius
- 👤 Siegel Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:57
CPC Classifications
D; D06; D06M; D06M11/00; D06M11/68; D06M11/70; D06M11/71
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
60 words
A FIRE RETARDANT CELLULOSE COMPOSITION CONSISTING ESSENTIALLY OF A MAJOR AMOUNT OF A CELLOUSE MATERIAL SELECTED FROM THE GROUP CONSISTING OF CELLOUSE ETHERS AND CELLOUSE ESTERS AND A MINOR AMOUNT OF A METAL PYROPHOSPATE SUFFICIENT TO IMPART FLAME RETARDANT PROPERTIES TO SAID CELLOUSE MATERIAL, SAID METAL PYROPHOSPHATE BEING SELECTED FROM THE GROUP CONSISTING OF IRON, COOPER, TITANIUM, AND ZIRCONIUM PYROPHOSPHATES.
Claim 2
Dependent Claim
60 words
A FIRE RETARDANT CELLULOSE COMPOSITION CONSISTING ESSENTIALLY OF A MAJOR AMOUNT OF A CELLOUSE MATERIAL SELECTED FROM THE GROUP CONSISTING OF CELLOUSE ETHERS AND CELLOUSE ESTERS AND A MINOR AMOUNT OF A METAL PYROPHOSPATE SUFFICIENT TO IMPART FLAME RETARDANT PROPERTIES TO SAID CELLOUSE MATERIAL, SAID METAL PYROPHOSPHATE BEING SELECTED FROM THE GROUP CONSISTING OF IRON, COOPER, TITANIUM, AND ZIRCONIUM PYROPHOSPHATES.
Claim 3
Dependent Claim
47 words
A FLAME-RETARDING COMPOSITION FOR CELLLOUSE MATERIALS SELECTED FROM THE GROUP CONSISTING OF CELLOUSE ETHERS AND CELLOUSE ESTERS CONSISTING ESSENTIALLY OF A HYDROUS TITANIUM PYROPHOSPHATE IN WHICH THE MOLAR RATIO OF TITANIUM TO PYROPHOSPHATE RADICAL MAY VARY FROM 1.5295:1 AND IN WHICH THE WATER CONTENT IS ABOUT 20%.
Claim 4
Dependent Claim
47 words
A FLAME-RETARDING COMPOSITION FOR CELLLOUSE MATERIALS SELECTED FROM THE GROUP CONSISTING OF CELLOUSE ETHERS AND CELLOUSE ESTERS CONSISTING ESSENTIALLY OF A HYDROUS TITANIUM PYROPHOSPHATE IN WHICH THE MOLAR RATIO OF TITANIUM TO PYROPHOSPHATE RADICAL MAY VARY FROM 1.5295:1 AND IN WHICH THE WATER CONTENT IS ABOUT 20%.
References Cited (Backward Citations)
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Cited
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US2610920A
Cited
US2618568A
Cited
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Cited
US2658000A
Cited
US2728680A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-02 | 1962-09-01 | 1963-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-02 | 1966-09-01 | 1967-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-02 | 1970-09-01 | 1971-03-03 | $7700.00 | Window Closed / Lapsed |