US3159602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of polymeric phosphates
Assignee: Olin Corp
•
Filing: 1962-06-07
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Granted: 1964-12-01
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Expires: 1982-06-07
Abstract
No abstract record available.
Inventors
- 👤 Chester E Hamilton
- 👤 Rudi F W Ratz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:13
CPC Classifications
C; C08; C08G; C08G79/00; C08G79/02; C08G79/04; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/6564; C07F9/6571; C07F9/6574; C07F9/65746
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
THE METHOD OF PREPARING A SOLID POLYMERIC PHOSPHATE WHICH COMPRISES REACTING 3,9-DICHLORO-2,4,8,10TETRAOXA-3,9-DIPHOSPHASPIROL(5.5)UNDECANE-3,9-DIOXIDE AT A TEMPERATURE OF ABOUT 140*C. TO ABOUT 230*C. WITH AT LEAST AN EQUIMOLAR QUANTITY OF A COMPOUND HAVING THE STRUCTURE R(OH)2, R BEING AN ARYLENE GROUP, REMOVING THE FORMED HYDROCHLORIC ACID AND COOLING THE REACTION PRODUCT.
Claim 2
Independent Claim
49 words
THE METHOD OF PREPARING A SOLID POLYMERIC PHOSPHATE WHICH COMPRISES REACTING 3,9-DICHLORO-2,4,8,10TETRAOXA-3,9-DIPHOSPHASPIROL(5.5)UNDECANE-3,9-DIOXIDE AT A TEMPERATURE OF ABOUT 140*C. TO ABOUT 230*C. WITH AT LEAST AN EQUIMOLAR QUANTITY OF A COMPOUND HAVING THE STRUCTURE R(OH)2, R BEING AN ARYLENE GROUP, REMOVING THE FORMED HYDROCHLORIC ACID AND COOLING THE REACTION PRODUCT.
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) | 1967-12-01 | 1968-06-01 | 1968-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-01 | 1972-06-01 | 1972-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-01 | 1976-06-01 | 1976-12-01 | $7700.00 | Window Closed / Lapsed |