US3121086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Naphthofuroquinolinediones and naphthofuroisoquinolinediones
Assignee: Renesas Electronics Corp
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Filing: 1961-05-29
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Granted: 1964-02-11
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Expires: 1981-05-29
Abstract
No abstract record available.
Inventors
- 👤 Sartori Mario Francesco
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:49
CPC Classifications
C; C09; C09B; C09B57/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A MEMBER SELECTED FROM THE GROUP CONSISTING OF DYE OF THE FORMULA 1,4-DI(O=),2,3-(-O-C(*)-Q-),X,Y-NAPHTHALENE WHEREIN X IS IN AN INDICATED ALPHA POSITION AND IS SELECTED FROM THE GROUP CONSISTING OF H,CL,BR,NO2,NH2, NHALKYL WHEREIN SAID ALKYL GROUP CONTAINS 1 TO 4 CARBON ATOMS, ANILINO, TOLUIDINO, ANISIDINO AND BENZAMIDO; Y IS IN AN INDICATED ALPHA POSITION AND IS SELECTED FROM THE GROUP CONSISTING OF H, NH2, BENZAMIDO AND OH; Q IS AN ANGULAR DIVALENT RADICAL SELECTED FROM THE GROUP CONSISTING OF -(5-(*)-QUINOLIN-5,6-YLENE)-
Claim 2
Dependent Claim
79 words
A MEMBER SELECTED FROM THE GROUP CONSISTING OF DYE OF THE FORMULA 1,4-DI(O=),2,3-(-O-C(*)-Q-),X,Y-NAPHTHALENE WHEREIN X IS IN AN INDICATED ALPHA POSITION AND IS SELECTED FROM THE GROUP CONSISTING OF H,CL,BR,NO2,NH2, NHALKYL WHEREIN SAID ALKYL GROUP CONTAINS 1 TO 4 CARBON ATOMS, ANILINO, TOLUIDINO, ANISIDINO AND BENZAMIDO; Y IS IN AN INDICATED ALPHA POSITION AND IS SELECTED FROM THE GROUP CONSISTING OF H, NH2, BENZAMIDO AND OH; Q IS AN ANGULAR DIVALENT RADICAL SELECTED FROM THE GROUP CONSISTING OF -(5-(*)-QUINOLIN-5,6-YLENE)-
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) | 1967-02-10 | 1967-08-12 | 1968-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-10 | 1971-08-12 | 1972-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-10 | 1975-08-12 | 1976-02-11 | $7700.00 | Window Closed / Lapsed |