US2976308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of phosphorodithioate triesters
Assignee: Lubrizol Corp
•
Filing: 1954-10-13
•
Granted: 1961-03-21
•
Expires: 1974-10-13
Abstract
No abstract record available.
Inventors
- 👤 William E Bacon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:27
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/16; C07F9/165
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
9 words
THE PROCESS OF PREPARING PHOSPHORODITHIOATE TRIESTERS WHICH COMPRISES REACTING
Claim 2
Dependent Claim
9 words
THE PROCESS OF PREPARING PHOSPHORODITHIOATE TRIESTERS WHICH COMPRISES REACTING
References Cited (Backward Citations)
US2528732A
Cited
US2565354A
Cited
US2565920A
Cited
US2492994A
Cited
US2578652A
Cited
US2632020A
Cited
US2802856A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-20 | 1964-09-19 | 1965-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-20 | 1968-09-19 | 1969-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-20 | 1972-09-19 | 1973-03-21 | $7700.00 | Window Closed / Lapsed |