US3325546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of detergent phosphine oxides
Assignee: Procter and Gamble Co
•
Filing: 1963-12-09
•
Granted: 1967-06-13
•
Expires: 1983-12-09
Abstract
No abstract record available.
Inventors
- 👤 Hugh R Hays
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:09
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/66; C11D1/79; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/50; C07F9/53; C07F9/5304
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
26 words
A PROCESS FOR THE PRODUCTION OF A DETERGENT TERTIARY PHOSPHINE OXIDE, COMPRISING THE STEP OF (1) REACTING WITH AGITATION OF QUARTERNARY PHOPHONIUM SALT OF THE FORMULA
Claim 2
Dependent Claim
26 words
A PROCESS FOR THE PRODUCTION OF A DETERGENT TERTIARY PHOSPHINE OXIDE, COMPRISING THE STEP OF (1) REACTING WITH AGITATION OF QUARTERNARY PHOPHONIUM SALT OF THE FORMULA
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) | 1970-06-12 | 1970-12-12 | 1971-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-12 | 1974-12-12 | 1975-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-12 | 1978-12-12 | 1979-06-13 | $7700.00 | Window Closed / Lapsed |