Patent US3376305A successfully refreshed from Google Patents.
US3376305A
Expired / Lapsed
US
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Synthetic hernandia alkaloid
Assignee: Smith Kline & French Laboratories Ltd
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Filing: 1966-03-24
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Granted: 1968-04-02
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Expires: 1986-03-24
Abstract
No abstract record available.
Inventors
- 👤 Michael P Cava
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:50
CPC Classifications
C; C07; C07D; C07D221/00; C07D221/02; C07D221/04; C07D221/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
10 words
HERNANDALINE, A CRYSTALLINE PRODUCT OF MANUFACTURE, HAVING THE STRUCTURAL FORMULA:
Claim 2
Dependent Claim
10 words
HERNANDALINE, A CRYSTALLINE PRODUCT OF MANUFACTURE, HAVING THE STRUCTURAL FORMULA:
References Cited (Backward Citations)
US3131191A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-02 | 1971-10-02 | 1972-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-02 | 1975-10-02 | 1976-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-02 | 1979-10-02 | 1980-04-02 | $7700.00 | Window Closed / Lapsed |