US3159659A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cyclopentadienyl metal diene complexes
Assignee: Union Carbide Corp
•
Filing: 1962-08-31
•
Granted: 1964-12-01
•
Expires: 1982-08-31
Abstract
No abstract record available.
Inventors
- 👤 Roy L Pruett
- 👤 William R Myers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:34
CPC Classifications
C; C07; C07F; C07F15/00; C07F15/0006; C07F15/0033; C07F15/0073; C07F15/06; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/30; C10L1/305
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
8 words
A CLASS OF COMPOUNDS OF THE GENERAL FORMULA:
Claim 2
Dependent Claim
8 words
A CLASS OF COMPOUNDS OF THE GENERAL FORMULA:
References Cited (Backward Citations)
US2818416A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-12-01 | 1968-06-01 | 1968-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-01 | 1972-06-01 | 1972-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-01 | 1976-06-01 | 1976-12-01 | $7700.00 | Window Closed / Lapsed |