US3225085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Succinic acid derivatives
Assignee: Monsanto Co
•
Filing: 1961-09-15
•
Granted: 1965-12-21
•
Expires: 1981-09-15
Abstract
No abstract record available.
Inventors
- 👤 Charles J Eby
- 👤 Erhard J Prill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:00
CPC Classifications
C; C07; C07C; C07C323/00; C07C323/50; C07C323/51; C07C323/52; C07C317/00; C07C317/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
5 words
A COMPOUND OF THE FORMULA
References Cited (Backward Citations)
US2205558A
Cited
US2429095A
Cited
US2434100A
Cited
US2654773A
Cited
US2642373A
Cited
US2689864A
Cited
US3064036A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |