US3585166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organic compositions containing esters,salts and acids of partial anhydrides of phosphine oxides
Assignee: Monsanto Co
•
Filing: 1969-06-11
•
Granted: 1971-06-15
•
Expires: 1989-06-11
Abstract
Abstract THIS INVENTION RELATES TO ORGANIC COMPOSITIONS CONTAINING, FOR EXAMPLE, PLYURETHANE AND A PARTICAL ANHYDRIDE OF ALKYLIDENE PHOSPHONYL PHOSPHINE OXIDE SUCH AS TRISODIUM TRI(METHYL PHOSPHONYL) PHOSPHINE OXIDE MONOANHYDRIDE HAVING THE FORMULA: 2,6-DI(NA-O-),4-(NA-O-P(=O)(-OH)-CH2-)-1,2,4,6- OXATRIPHOSPHORINANE-2,4,6-TRIONE OR THE DIETHYL ESTER THEREOF AND WHICH HAS THE FORMULA 2-(C2H5-O-),4-(C2H5-O-P(=O)(-OH)-CH2-),6-(NA-O-)-1,2,4,6- OXATRIPHOSPHORINANE-2,4,6-TRIONE
Inventors
- 👤 Al F Kerst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:24
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/6564; C07F9/6568; C07F9/65685; C08; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/53; C08K5/5397
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1974-06-14 | 1974-12-14 | 1975-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-14 | 1978-12-14 | 1979-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-14 | 1982-12-14 | 1983-06-15 | $7700.00 | Window Closed / Lapsed |