US3426052A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Five membered zirconium,boron,thallium and gold heterocyclic compounds
Assignee: Union Carbide Corp
•
Filing: 1960-06-15
•
Granted: 1969-02-04
•
Expires: 1980-06-15
Abstract
No abstract record available.
Inventors
- 👤 Karl W Hubel
- 👤 Emile H Braye
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:48
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/30; C07D207/32; C07D207/323; C07C; C07C1/00; C07C1/32; C07C1/325; C07C335/00; C07C335/30; C07C335/32; C07D307/00; C07D307/02; C07D307/34; C07D307/36; C07D309/00; C07D309/34; C07D309/36; C07D309/38; C07D333/00; C07D333/02; C07D333/04; C07D333/06; C07D333/08; C07F; C07F15/00; C07F15/02; C07F17/00; C07F3/00; C07F3/06; C07F5/00; C07F5/06; C07F5/069; C07F7/00; C07F7/02; C07F7/08; C07F7/0803; C07F7/0805; C07F7/0807; C07F9/00; C07F9/02; C07F9/547; C07F9/6564; C07F9/6568; C07F9/65683; C07F9/65685; C07F9/66; C07F9/70; C07F9/90; C07F9/94
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
13 words
AS A NEW COMPOSITION OF MATTER, A FIVE-MEMBERED HETEROCYCLIC COMPOUND HAVING THE FORMULA
References Cited (Backward Citations)
US2160915A
Cited
US2468769A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-04 | 1972-08-05 | 1973-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-04 | 1976-08-05 | 1977-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-04 | 1980-08-05 | 1981-02-04 | $7700.00 | Window Closed / Lapsed |