Patent US3029122A successfully refreshed from Google Patents.
US3029122A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ice color coupling component composition
Assignee: GAF Chemicals Corp
•
Filing: 1956-12-31
•
Granted: 1962-04-10
•
Expires: 1976-12-31
Abstract
No abstract record available.
Inventors
- 👤 Frederick W Posselt
- 👤 Lester N Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:11
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/90; D06P1/92; D06P1/928; C; C09; C09B; C09B67/00; C09B67/0071; C09B67/0079; Y; Y10; Y10S; Y10S8/00; Y10S8/907; Y10S8/916; Y10S8/918
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A CLEAR SUBSTANTIALLY ANHYDROUS AZOIC COUPLER COMPOSITION COMPRISING, IN ABOUT MOLECULARLY EQUIVALENT PROPORTIONS, 3-HYDROXY-2-NAPHTHOIC ACID B-NAPHTHALIDE AND A WATER-SOLUBLE NON-DIAZOTIZABLE ORGANIC BASIC AMINE SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL AMINES, LOWER HYDROXYALKYL AMINES AND MONO-NUCLEAR HETEROCYCLIC AMINES, AND ABOUT 0.25 TO 2.5 PARTS OF A NITROGENCONTAINING ORGANIC SOLVENT SELECTED FROM TGHE GROUP CONSISTING OF 2-PYRROLIDONE, FORMAMIDE AND THEIR N-LOWER ALKYL AND N-LOWER HYDROXYALKYL SUBSTITUTED DERIVATIVES PER PART BY WEIGHT OF THE 3-HYDROXY-2-NAPHTHOIC ACID B-NAPHTHALIDE SAID LOWER ALKYL AND LOWER HYDROXYALKYL GROUPS CONTAINING 1 TO 4 CARBON ATOMS.
Claim 2
Dependent Claim
89 words
A CLEAR SUBSTANTIALLY ANHYDROUS AZOIC COUPLER COMPOSITION COMPRISING, IN ABOUT MOLECULARLY EQUIVALENT PROPORTIONS, 3-HYDROXY-2-NAPHTHOIC ACID B-NAPHTHALIDE AND A WATER-SOLUBLE NON-DIAZOTIZABLE ORGANIC BASIC AMINE SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL AMINES, LOWER HYDROXYALKYL AMINES AND MONO-NUCLEAR HETEROCYCLIC AMINES, AND ABOUT 0.25 TO 2.5 PARTS OF A NITROGENCONTAINING ORGANIC SOLVENT SELECTED FROM TGHE GROUP CONSISTING OF 2-PYRROLIDONE, FORMAMIDE AND THEIR N-LOWER ALKYL AND N-LOWER HYDROXYALKYL SUBSTITUTED DERIVATIVES PER PART BY WEIGHT OF THE 3-HYDROXY-2-NAPHTHOIC ACID B-NAPHTHALIDE SAID LOWER ALKYL AND LOWER HYDROXYALKYL GROUPS CONTAINING 1 TO 4 CARBON ATOMS.
References Cited (Backward Citations)
GB668961A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-09 | 1965-10-09 | 1966-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-09 | 1969-10-09 | 1970-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-09 | 1973-10-09 | 1974-04-10 | $7700.00 | Window Closed / Lapsed |