Patent US2910403A successfully refreshed from Google Patents.
US2910403A
Expired / Lapsed
US
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Anti hypertensive compositions comprising 2-methyl-5, 8-dimethoxychromone and acetamides
Assignee: National Drug Co
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Filing: 1956-01-30
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Granted: 1959-10-27
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Expires: 1976-01-30
Abstract
No abstract record available.
Inventors
- 👤 Robert R Brendel
- 👤 Beiler Jay Morton
- 👤 Gustav J Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:08
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/16; A61K31/165
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
A PHARMACEUTICAL COMPOSITION ESSENTIALLY CONTAINING 2-METHYL-5,8-DIMETHOXYCHROMONE; AND AN ACETAMIDE OF THE FORMULA:
Claim 2
Dependent Claim
12 words
A PHARMACEUTICAL COMPOSITION ESSENTIALLY CONTAINING 2-METHYL-5,8-DIMETHOXYCHROMONE; AND AN ACETAMIDE OF THE FORMULA:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-26 | 1963-04-27 | 1963-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-26 | 1967-04-27 | 1967-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-26 | 1971-04-27 | 1971-10-27 | $7700.00 | Window Closed / Lapsed |