Patent US3079312A successfully refreshed from Google Patents.
Patent CA465525A successfully refreshed from Google Patents.
Patent US4715759A successfully refreshed from Google Patents.
Patent US3288891A successfully refreshed from Google Patents.
US3288891A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing dialkyl carbalkoxyalkenyl and carbaroxyalkenyl phosphate esters
Assignee: Eastman Kodak Co
•
Filing: 1963-10-29
•
Granted: 1966-11-29
•
Expires: 1983-10-29
Abstract
No abstract record available.
Inventors
- 👤 Edward U Elam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:55
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/141; C07F9/143
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
A PROCESS FOR PREPARING ESTERS OF PHOSPHOROUS ACID HAVING THE FORMULA
Claim 2
Dependent Claim
11 words
A PROCESS FOR PREPARING ESTERS OF PHOSPHOROUS ACID HAVING 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) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |