US2899455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
O oxch
Assignee: —
•
Filing: —
•
Granted: 1959-08-11
•
Expires: 1976-08-11
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:24
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/6564; C07F9/6571; C07F9/657163; C07F9/657181
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
THE METHOD FOR PRODUCING NEW ORGANOPHOSPHORUS COMPOUNDS WHICH COMPRISES REACTING 2,2-DIMETHYL-1,3PROPANEDIOL CYCLIC HYDROGEN PHOSPHITE WITH A COMPOUND REPRESENT BY THE FORMULAS:
Claim 2
Dependent Claim
34 words
THE ORGANOPHOSPHORUS COMPOUNDS HAVING THE STRUCTURAL FORMULA: FIG02 WHEREIN Z IS A RADICAL HAVING A CARBON ATOM ATTACHED DIRECTLY TO THE PHOSPHORUS ATOM IN SAID STRUCTURAL FORMULA AND SELECTED FROM THE GROUP CONSISTING OF
References Cited (Backward Citations)
US2744128A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-10 | 1963-02-09 | 1963-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-10 | 1967-02-09 | 1967-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-10 | 1971-02-09 | 1971-08-11 | $7700.00 | Window Closed / Lapsed |