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Patent US3074957A successfully refreshed from Google Patents.
US3074957A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Certain 3-alkenyl-1,2,4-oxadiazoles
Assignee: Wyeth Holdings LLC
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Filing: 1960-10-07
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Granted: 1963-01-22
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Expires: 1980-10-07
Abstract
No abstract record available.
Inventors
- 👤 Fred C Schaefer
- 👤 Mary E Castellion
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:59
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A COMPOUND OF THE FORMULA:
Claim 2
Dependent Claim
5 words
A COMPOUND 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) | 1966-01-21 | 1966-07-23 | 1967-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-21 | 1970-07-23 | 1971-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-21 | 1974-07-23 | 1975-01-22 | $7700.00 | Window Closed / Lapsed |