Patent US3092653A successfully refreshed from Google Patents.
US3092653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2-(substituted-benzyl)-1, 3-propane-dinitriles
Assignee: Wyeth Holdings LLC
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Filing: 1961-04-25
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Granted: 1963-06-04
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Expires: 1981-04-25
Abstract
No abstract record available.
Inventors
- 👤 Raymond G Wilkinson
- 👤 Thomas L Fields
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:38
CPC Classifications
C; C07; C07C; C07C43/00; C07C43/02; C07C43/20; C07C255/00
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)
US2788360A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-03 | 1966-12-03 | 1967-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-03 | 1970-12-03 | 1971-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-03 | 1974-12-03 | 1975-06-04 | $7700.00 | Window Closed / Lapsed |