Patent US3013013A successfully refreshed from Google Patents.
US3013013A
Expired / Lapsed
US
⏱️ 0.0 years remaining
5-cyanomethylene-2-oxo-3-pyrrolines
Assignee: EIDP Inc
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Filing: 1959-04-24
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Granted: 1961-12-12
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Expires: 1979-04-24
Abstract
No abstract record available.
Inventors
- 👤 Rudolph A Carboni
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:17
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/44; C07D403/00; C07D403/02; C07D403/04; C07D403/06; C07D407/00; C07D407/02; C07D407/04; C07D407/12; C07D409/00; C07D409/02; C07D409/04; C07D417/00; C07D417/02; C07D417/12; C09; C09B; C09B57/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
DYES REPRESENTED BY THE FORMULA
Claim 2
Dependent Claim
5 words
DYES REPRESENTED BY THE FORMULA
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-11 | 1965-06-12 | 1965-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-11 | 1969-06-12 | 1969-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-11 | 1973-06-12 | 1973-12-12 | $7700.00 | Window Closed / Lapsed |