Patent US5643514A successfully refreshed from Google Patents.
US3095443A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aryl derivatives
Assignee: Francesco Vismara SpA
•
Filing: 1961-04-25
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Granted: 1963-06-25
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Expires: 1981-04-25
Abstract
No abstract record available.
Inventors
- 👤 Cavallini Guido
- 👤 Massarani Elena
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:29
CPC Classifications
C; C07; C07C; C07C229/00; C07C229/52; C07C229/54; C07C229/64
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
A CHEMICAL COMPOUND OF THE FORMULA:
Claim 2
Dependent Claim
6 words
A CHEMICAL COMPOUND OF THE FORMULA:
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-24 | 1966-12-24 | 1967-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-24 | 1970-12-24 | 1971-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-24 | 1974-12-24 | 1975-06-25 | $7700.00 | Window Closed / Lapsed |