Patent US1720255A successfully refreshed from Google Patents.
Patent US3304330A successfully refreshed from Google Patents.
US3304330A
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Tertiary phosphine oxide compounds
Assignee: Procter and Gamble Co
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Filing: 1962-02-16
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Granted: 1967-02-14
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Expires: 1982-02-16
Abstract
No abstract record available.
Inventors
- 👤 Iii John Thomas Yoke
- 👤 Robert G Laughlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:22
CPC Classifications
C; C11; C11D; C11D10/00; C11D10/04; C11D10/045; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/30; C07F9/50; C07F9/52; C07F9/53; C09; C09K; C09K23/00; C09K23/14; C11D1/00; C11D1/66; C11D1/79; C11D1/02; C11D1/12; C11D1/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
TERTIARY PHOSPHINE OXIDE COMPOUNDS HAVING THE FORMULA RR''R"P$O, WHEREIN R IS SELECTED FROM THE GROUP CONSISTING OF ALKYL AND MONOHYDROXYALKYL RADICALS RANGING IN CHAIN LENGTH FROM 10 TO 18 CARBON ATOMS, R'' AND R" ARE EACH SELECTED FROM THE GROUP CONSISTING OF ALKYL AND MONOHYDROXYALKYL RADICALS CONTAINING FROM 1 TO 3 CARBON ATOMS.
Claim 2
Dependent Claim
53 words
TERTIARY PHOSPHINE OXIDE COMPOUNDS HAVING THE FORMULA RR''R"P$O, WHEREIN R IS SELECTED FROM THE GROUP CONSISTING OF ALKYL AND MONOHYDROXYALKYL RADICALS RANGING IN CHAIN LENGTH FROM 10 TO 18 CARBON ATOMS, R'' AND R" ARE EACH SELECTED FROM THE GROUP CONSISTING OF ALKYL AND MONOHYDROXYALKYL RADICALS CONTAINING FROM 1 TO 3 CARBON ATOMS.
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) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |