US2952701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organophosphorus derivatives of 2, 2-dimethyl-1, 3-propanediol
Assignee: Eastman Kodak Co
•
Filing: 1957-04-15
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Granted: 1960-09-13
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Expires: 1977-04-15
Abstract
No abstract record available.
Inventors
- 👤 Richard L Mcconnell
- 👤 Jr Harry W Coover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:24
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/22; C07F9/24; C07F9/2404; C07F9/2425; C07F9/547; C07F9/6564; C07F9/6571; C07F9/6574
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
19 words
AS A COMPOSITION OF MATTER, ORGANOPHOSPHORUS COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF THOSE HAVING THE FOLLOWING STRUCTURAL FORMULAS:
Claim 2
Dependent Claim
19 words
AS A COMPOSITION OF MATTER, ORGANOPHOSPHORUS COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF THOSE HAVING THE FOLLOWING STRUCTURAL FORMULAS:
Claim 3
Independent Claim
92 words
THE METHOD FOR PRODUCING NEW ORGANOPHOSPHORUS COMPOUNDS WHICH COMPRISES REACTING 2,2-DIMETHYL-1,3PROPANEDIOL WITH A COMPOUND SELECTED FROM THE GROUP CONSISTING OF PHOSPHORUS TRICHLORIDE, PHOSPHORUS OXYCHLORIDE, THIOPHOSPHORYL CHLORIDE, AND BIS (DIAKYL AMIDO) CHLOROPHOSPHATES WHEREIN THE ALKYL GROUPS CONTAIN FROM 1 TO 4 CARBON ATOMS AT A TEMPERATURE WITHIN THE RANGE OF 0 TO 150* C. IN THE PRESENCE OF A NITROGEN-CONTAINING HYDROGEN CHLORIDE ACCEPTOR WHEN ONE OF PHOSPHORUS OXYCHLORIDE, THIOPHOSPHORYL CHLORIDE AND BIS(DIAKYL AMIDO) CHLOROPHOSPHATES IS A REACTANT, TO PRODUCE A COMPOUND SELECTED FROM THE GROUP CONSISTING OF THOSE HAVING THE FOLLOWING STRUCTURAL FORMULAS:
Claim 4
Independent Claim
92 words
THE METHOD FOR PRODUCING NEW ORGANOPHOSPHORUS COMPOUNDS WHICH COMPRISES REACTING 2,2-DIMETHYL-1,3PROPANEDIOL WITH A COMPOUND SELECTED FROM THE GROUP CONSISTING OF PHOSPHORUS TRICHLORIDE, PHOSPHORUS OXYCHLORIDE, THIOPHOSPHORYL CHLORIDE, AND BIS (DIAKYL AMIDO) CHLOROPHOSPHATES WHEREIN THE ALKYL GROUPS CONTAIN FROM 1 TO 4 CARBON ATOMS AT A TEMPERATURE WITHIN THE RANGE OF 0 TO 150* C. IN THE PRESENCE OF A NITROGEN-CONTAINING HYDROGEN CHLORIDE ACCEPTOR WHEN ONE OF PHOSPHORUS OXYCHLORIDE, THIOPHOSPHORYL CHLORIDE AND BIS(DIAKYL AMIDO) CHLOROPHOSPHATES IS A REACTANT, TO PRODUCE A COMPOUND SELECTED FROM THE GROUP CONSISTING OF THOSE HAVING THE FOLLOWING STRUCTURAL FORMULAS:
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) | 1963-09-13 | 1964-03-14 | 1964-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-13 | 1968-03-14 | 1968-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-13 | 1972-03-14 | 1972-09-13 | $7700.00 | Window Closed / Lapsed |