US3141018A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Para tertiary amino-alkylene-aminobenzylidene malononitriles and functional derivatives thereof
Assignee: Eastman Kodak Co
•
Filing: 1961-07-20
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Granted: 1964-07-14
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Expires: 1981-07-20
Abstract
No abstract record available.
Inventors
- 👤 James M Straley
- 👤 David J Wallace
- 👤 John G Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:39
CPC Classifications
C; C09; C09B; C09B23/00; C09B23/14; C09B23/143; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/927
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
THE METHINE COMPOUND HAVING THE FORMULA:
Claim 2
Dependent Claim
15 words
A METHINE COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE METHINE COMPOUNDS HAVING THE FORMULA
References Cited (Backward Citations)
US2789125A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-14 | 1968-01-13 | 1968-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-14 | 1972-01-13 | 1972-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-14 | 1976-01-13 | 1976-07-14 | $7700.00 | Window Closed / Lapsed |