Patent US5819084A successfully refreshed from Google Patents.
US3051697A
Expired / Lapsed
US
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Azomonazone n-oxides, production and deoxygenation
Assignee: Wyeth Holdings LLC
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Filing: 1958-10-06
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Granted: 1962-08-28
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Expires: 1978-10-06
Abstract
No abstract record available.
Inventors
- 👤 Charles E Lewis
- 👤 Albert P Paul
- 👤 Julian J Leavitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:02
CPC Classifications
C; C09; C09B; C09B43/00; C09B39/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
13 words
A 2-ARYLAZOMONOANZINE-N-OXIDE SELECTED FROM THE GROUP CONSISTING OF SAID N-OXIDES OF THE FORMULAE
References Cited (Backward Citations)
US2864813A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-27 | 1966-02-26 | 1966-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-27 | 1970-02-26 | 1970-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-27 | 1974-02-26 | 1974-08-28 | $7700.00 | Window Closed / Lapsed |