US2631152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Guanylurea salts of penicillin
Assignee: Wyeth Holdings LLC
•
Filing: 1952-01-24
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Granted: 1953-03-10
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Expires: 1972-01-24
Abstract
No abstract record available.
Inventors
- 👤 Ritter Lawrence
- 👤 Joseph F Weidenheimer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:23
CPC Classifications
C; C07; C07D; C07D499/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
THE SALT OF PENICILLIN AND A COMPOUND SELECTED FROM THE GROUP CONSISTING OF GUANYLUREA, N-ALKYLGUANYLUREA, N,N - DIALKYGUANYLUREA, NCYCLOALKYLGUANYLUREA, N-MONOCYLIC ARYLGUANYLUREA, N-MONOCYCLIC HALORAYL GUANYLUREA, N-ARALKYLGUANYLUREA, N-MONOCYCLIC LOWER ALKOXYARYLGUANYLUREA, N-MONOCYCLI LOWER ALKARYL GUANYLUREA, N-ALKYL-N-ARYL-GUANYLUREA, N-GUANYLUREA, N-CARBAMYL GUANYLUREA AND N-MONOCYCLICAROYLGUANYLUREA.
Claim 2
Dependent Claim
38 words
THE SALT OF PENICILLIN AND A COMPOUND SELECTED FROM THE GROUP CONSISTING OF GUANYLUREA, N-ALKYLGUANYLUREA, N,N - DIALKYGUANYLUREA, NCYCLOALKYLGUANYLUREA, N-MONOCYLIC ARYLGUANYLUREA, N-MONOCYCLIC HALORAYL GUANYLUREA, N-ARALKYLGUANYLUREA, N-MONOCYCLIC LOWER ALKOXYARYLGUANYLUREA, N-MONOCYCLI LOWER ALKARYL GUANYLUREA, N-ALKYL-N-ARYL-GUANYLUREA, N-GUANYLUREA, N-CARBAMYL GUANYLUREA AND N-MONOCYCLICAROYLGUANYLUREA.
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) | 1956-03-09 | 1956-09-08 | 1957-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-09 | 1960-09-08 | 1961-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-09 | 1964-09-08 | 1965-03-10 | $7700.00 | Window Closed / Lapsed |