US3262971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phosphorus compounds
Assignee: Monsanto Research Corp
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Filing: 1964-08-07
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Granted: 1966-07-26
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Expires: 1984-08-07
Abstract
No abstract record available.
Inventors
- 👤 Clifford N Matthews
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:11
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/54; C07F9/5449; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/26; C10L1/2608
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
COMPOUNDS WHEREIN A SINGLE CARBON ATOM LINKS TWO PHOSPHORUS ATOMS, EACH HAVING THREE SUBSTITUENTS IN ADDITION TO SAID SINGLE LINKING C ATOM, SAID PHOSPHORUS SUBSISTUENTS CONSISTING OF HYDROCARBON RADICALS FREE OF NONBENZENOID UNSATURATION AND CONTAINING FROM 1 TO 18 CARBON ATOMS, SAID COMPOUNDS BEING SELECTED FROM THE CLASS CONSISTING OF (1) CARBODIPHOSPHORANCES WHEREIN SAID SINGLE C ATOM LINKING SAID TWO PHOSPHORUS ATOMS IS UNSUBSTITUTED; (2) OUTER SALTS HAVING A CATION COMPRISING A MONOVALENT MESOMERIC SYSTEM WHEREIN SAID C ATOM CARRIES A SUBSTITUENT SELECTED FROM THE GROUP CONSISTING OF H AND HYDROCARBON RADICALS FREE OF NON-BENZENOID UNSATURATION AND CONTAINING FROM 1 TO 18 CARBON ATOMS; AND (3) TRI-. SUBSTITUTED PHOSPHONIUM METHYLENE TRISUBSTITUTED PHOSPHORANE INNER SALTS WITH MESOMERIC CATIONS WHEREIN SAID C ATOMS CARRIES A SUBSTITUENT SELECTED FROM THE CLASS CONSISTING OF TRISUBSTITUTED GROUP III ELEMENT ANIONIC GROUPS OF THE FORMULA
Claim 2
Dependent Claim
139 words
COMPOUNDS WHEREIN A SINGLE CARBON ATOM LINKS TWO PHOSPHORUS ATOMS, EACH HAVING THREE SUBSTITUENTS IN ADDITION TO SAID SINGLE LINKING C ATOM, SAID PHOSPHORUS SUBSISTUENTS CONSISTING OF HYDROCARBON RADICALS FREE OF NONBENZENOID UNSATURATION AND CONTAINING FROM 1 TO 18 CARBON ATOMS, SAID COMPOUNDS BEING SELECTED FROM THE CLASS CONSISTING OF (1) CARBODIPHOSPHORANCES WHEREIN SAID SINGLE C ATOM LINKING SAID TWO PHOSPHORUS ATOMS IS UNSUBSTITUTED; (2) OUTER SALTS HAVING A CATION COMPRISING A MONOVALENT MESOMERIC SYSTEM WHEREIN SAID C ATOM CARRIES A SUBSTITUENT SELECTED FROM THE GROUP CONSISTING OF H AND HYDROCARBON RADICALS FREE OF NON-BENZENOID UNSATURATION AND CONTAINING FROM 1 TO 18 CARBON ATOMS; AND (3) TRI-. SUBSTITUTED PHOSPHONIUM METHYLENE TRISUBSTITUTED PHOSPHORANE INNER SALTS WITH MESOMERIC CATIONS WHEREIN SAID C ATOMS CARRIES A SUBSTITUENT SELECTED FROM THE CLASS CONSISTING OF TRISUBSTITUTED GROUP III ELEMENT ANIONIC GROUPS OF THE FORMULA
References Cited (Backward Citations)
US2912467A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-25 | 1970-01-24 | 1970-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-25 | 1974-01-24 | 1974-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-25 | 1978-01-24 | 1978-07-26 | $7700.00 | Window Closed / Lapsed |