US2728680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame retarding agent
Assignee: NL Industries Inc
•
Filing: 1951-10-30
•
Granted: 1955-12-27
•
Expires: 1971-10-30
Abstract
No abstract record available.
Inventors
- 👤 Duane Donald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:25
CPC Classifications
D; D06; D06M; D06M11/00; D06M11/77; D06M11/79; D06M11/07; D06M11/11; D06M11/20; D06M11/22; D06M11/32; D06M11/36; D06M11/46; D06M11/68; D06M11/70; D06M11/71
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
AN AQUEOUS PHOSPHATE STABILIXED TITANIUM SOLUTION USEFUL FOR TREATMENT OF FIBROUS CELLULOSIC MATERIALS TO IMPART FLAME-RESISTANCE THERETO AND CAPABLE OF BEING STORED FOR EXTENDED PERIODS OF TIME WITHOUT DETERIORATION COMPRISING: AN ADMIXTURE OF TETRAVALENT TITANIUM CHLORIDE AND A SOLUBLE INORGANIC PHOSPHATE, THE TITANIUM OF SAID TITAMIUM CHLORIDE BEING PRESENT IN AMOUNT FROM ABOUT 50 TO 150 GRAMS PER LITER AND THE CHLORIDE OF SAID TITANIUM CHLORIDE BEING PRESENT IN AMOUNT FROM ABOUT 1.3 TO ABOUT 2.0 PARTS FOR EACH PART OF TITANIUM, SAID SOLUBLE INORGANIC PHOSPHATE BEING PRESENT IN SAID SOLUTION IN AMOUNT FROM ABOUT 0.20 TO ABOUT 0.17 PART PHOSPHOROUS FOR EACH PART OF TITANIUM.
Claim 2
Dependent Claim
106 words
AN AQUEOUS PHOSPHATE STABILIXED TITANIUM SOLUTION USEFUL FOR TREATMENT OF FIBROUS CELLULOSIC MATERIALS TO IMPART FLAME-RESISTANCE THERETO AND CAPABLE OF BEING STORED FOR EXTENDED PERIODS OF TIME WITHOUT DETERIORATION COMPRISING: AN ADMIXTURE OF TETRAVALENT TITANIUM CHLORIDE AND A SOLUBLE INORGANIC PHOSPHATE, THE TITANIUM OF SAID TITAMIUM CHLORIDE BEING PRESENT IN AMOUNT FROM ABOUT 50 TO 150 GRAMS PER LITER AND THE CHLORIDE OF SAID TITANIUM CHLORIDE BEING PRESENT IN AMOUNT FROM ABOUT 1.3 TO ABOUT 2.0 PARTS FOR EACH PART OF TITANIUM, SAID SOLUBLE INORGANIC PHOSPHATE BEING PRESENT IN SAID SOLUTION IN AMOUNT FROM ABOUT 0.20 TO ABOUT 0.17 PART PHOSPHOROUS FOR EACH PART OF TITANIUM.
References Cited (Backward Citations)
US1804633A
Cited
US1945714A
Cited
US2128296A
Cited
US2413146A
Cited
US2461302A
Cited
US2570566A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-26 | 1959-06-27 | 1959-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-26 | 1963-06-27 | 1963-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-26 | 1967-06-27 | 1967-12-27 | $7700.00 | Window Closed / Lapsed |