US3222373A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Derivatives of ferrocene
Assignee: Union Oil Company of California
•
Filing: 1963-06-06
•
Granted: 1965-12-07
•
Expires: 1983-06-06
Abstract
No abstract record available.
Inventors
- 👤 Rai Charanjit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:30
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/30; A61K8/58; A61Q; A61Q17/00; A61Q17/04; C; C07; C07F; C07F17/00; C07F17/02; A61K2800/00; A61K2800/40; A61K2800/58
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)
US2985661A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |