US2894016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heterocyclic phosphorus-containing compounds and their production
Assignee: Union Carbide Corp
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Filing: 1957-01-07
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Granted: 1959-07-07
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Expires: 1977-01-07
Abstract
No abstract record available.
Inventors
- 👤 William M Lanham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:16
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/6564; C07F9/6571; C07F9/657109; C07F9/657118; C07F9/6574; C07F9/65742
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
30 words
AS NEW COMPOUNDS, ARYL HYDROCARBON-SUBSTITUTED HETEROCYCLIC PHOSPHORUS-CONTAINING COMPOUNDS HAVING AT LEAST ONE ARYL HYDROCARBON RESIDUE ATTACHED TO A CORRESPONDING CARBON ATOM OF THE THE HETEROCYCLIC RING, AND HAVING THE STRUCTURE
Claim 2
Dependent Claim
30 words
AS NEW COMPOUNDS, ARYL HYDROCARBON-SUBSTITUTED HETEROCYCLIC PHOSPHORUS-CONTAINING COMPOUNDS HAVING AT LEAST ONE ARYL HYDROCARBON RESIDUE ATTACHED TO A CORRESPONDING CARBON ATOM OF THE THE HETEROCYCLIC RING, AND HAVING THE STRUCTURE
Claim 3
Dependent Claim
39 words
PROCESS FOR MAKING ARYL HYDROCARBON-SUBSTITUTED HETEROCYCLIC PHOSPHORUS-CONTAINING COMPOUNDS WHICH COMPRISES REACTING (1) A PHOSPHORUS COMPOUND OF THE CLASS CONSISTING OF PHOSPHORUS PENTASULFIDE, PHOSPHORYL CHLORIDE, PHOSPHORYL BROMIDE, THIOPHOSPHORYL CHLORIDE, AND THIOPHOSPHORYL BROMIDE WITH (2) AN ARYL-SUBSTITUTED ALKANE-1,3-DIOL HAVING THE STRUCTURE
Claim 4
Dependent Claim
39 words
PROCESS FOR MAKING ARYL HYDROCARBON-SUBSTITUTED HETEROCYCLIC PHOSPHORUS-CONTAINING COMPOUNDS WHICH COMPRISES REACTING (1) A PHOSPHORUS COMPOUND OF THE CLASS CONSISTING OF PHOSPHORUS PENTASULFIDE, PHOSPHORYL CHLORIDE, PHOSPHORYL BROMIDE, THIOPHOSPHORYL CHLORIDE, AND THIOPHOSPHORYL BROMIDE WITH (2) AN ARYL-SUBSTITUTED ALKANE-1,3-DIOL HAVING THE STRUCTURE
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) | 1962-07-06 | 1963-01-05 | 1963-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-06 | 1967-01-05 | 1967-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-06 | 1971-01-05 | 1971-07-07 | $7700.00 | Window Closed / Lapsed |