Patent US3053831A successfully refreshed from Google Patents.
US3053831A
Expired / Lapsed
US
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Dialkoxynaphthyl penicillins
Assignee: Wyeth LLC
•
Filing: 1961-05-05
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Granted: 1962-09-11
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Expires: 1981-05-05
Abstract
No abstract record available.
Inventors
- 👤 Scott J Childress
- 👤 Albert A Mascitti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:35
CPC Classifications
C; C07; C07D; C07D499/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
19 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF 6-(DI-(LOWER ALKOXY)-1-NAPHTHAMIDO)-PENICILLANI ACIDS AND THE ALKALI METAL SALTS OF SIAD ACIDS.
Claim 2
Dependent Claim
19 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF 6-(DI-(LOWER ALKOXY)-1-NAPHTHAMIDO)-PENICILLANI ACIDS AND THE ALKALI METAL SALTS OF SIAD ACIDS.
References Cited (Backward Citations)
BE569728A
Cited
US2941995A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-10 | 1966-03-12 | 1966-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-10 | 1970-03-12 | 1970-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-10 | 1974-03-12 | 1974-09-11 | $7700.00 | Window Closed / Lapsed |