US3000822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phosphorodithioate inhibitors
Assignee: Lubrizol Corp
•
Filing: 1957-01-22
•
Granted: 1961-09-19
•
Expires: 1977-01-22
Abstract
No abstract record available.
Inventors
- 👤 William A Higgins
- 👤 Suer William M Le
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:01
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/16; C07F9/165; C10; C10M; C10M137/00; C10M137/02; C10M137/04; C10M137/10; C10M2219/00; C10M2219/04; C10M2219/046; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/045; C10N; C10N2010/00; C10N2010/04; C10N2030/00; C10N2030/08; C10N2030/12; C10N2040/00; C10N2040/12; C10N2040/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
THE ZINC SALTS OF A MIXTURE OF PHOSPHORODITHIOIC ACIDS HAVING THE STRUCTURE
Claim 2
Dependent Claim
12 words
THE ZINC SALTS OF A MIXTURE OF PHOSPHORODITHIOIC ACIDS HAVING THE STRUCTURE
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) | 1964-09-18 | 1965-03-20 | 1965-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-18 | 1969-03-20 | 1969-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-18 | 1973-03-20 | 1973-09-19 | $7700.00 | Window Closed / Lapsed |