US3413327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of crystalline group ii metal salts of lower alkyl phosphorodithioic acid
Assignee: Lubrizol Corp
•
Filing: 1966-01-27
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Granted: 1968-11-26
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Expires: 1986-01-27
Abstract
No abstract record available.
Inventors
- 👤 Curtis L Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:43
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/16; C07F9/165
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3277133A
Cited
US3004996A
Cited
US3290347A
Cited
US3351647A
Cited
US3328335A
Cited
US3347790A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-26 | 1972-05-27 | 1972-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-26 | 1976-05-27 | 1976-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-26 | 1980-05-27 | 1980-11-26 | $7700.00 | Window Closed / Lapsed |