US3344023A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of hypertension with l-alphamethyl-3, 4-dihydroxyphenylalanine
Assignee: Merck and Co Inc
•
Filing: 1963-02-01
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Granted: 1967-09-26
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Expires: 1983-02-01
Abstract
No abstract record available.
Inventors
- 👤 Donald F Reinhold
- 👤 Sletzinger Meyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:43
CPC Classifications
C; C07; C07C; C07C255/00; C07C45/00; C07C45/61; C07C45/67; C07C45/673; C07C49/00; C07C49/20; C07C49/255; C07D; C07D233/00; C07D233/54; C07D233/66; C07D233/72; C07D233/76; C07D233/78
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2868818A
Cited
US2969372A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |