Patent US3069307A successfully refreshed from Google Patents.
US3069307A
Expired / Lapsed
US
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Oxyalkylated phenol process
Assignee: Baker Petrolite LLC
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Filing: 1960-04-20
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Granted: 1962-12-18
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Expires: 1980-04-20
Abstract
No abstract record available.
Inventors
- 👤 William M Boaz
- 👤 Kenneth J Lissant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:30
CPC Classifications
D; D21; D21C; D21C5/00; D21C5/02; D21C5/025; D21C5/027; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/64
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A PROCESS OF DEINKING PAPER PRODUCTS CHARACTERIZED BY PULPING IMPRINTED PAPER WITH A CAUSTIC-FREE AQUEOUS SOLUTION CONSISTING ESSENTIALLY OF A MINOR AMOUNT OF AN OXYALKYLATED PHENOLIC COMPOUND IN WATER, REMOVING THE INK PARTICULES FROM THE AQUEOUS SOLUTION, AND THEREUPON SEPARATING THE PAPER PULP FROM THE AQUEOUS SOLUTION.
Claim 2
Dependent Claim
47 words
A PROCESS OF DEINKING PAPER PRODUCTS CHARACTERIZED BY PULPING IMPRINTED PAPER WITH A CAUSTIC-FREE AQUEOUS SOLUTION CONSISTING ESSENTIALLY OF A MINOR AMOUNT OF AN OXYALKYLATED PHENOLIC COMPOUND IN WATER, REMOVING THE INK PARTICULES FROM THE AQUEOUS SOLUTION, AND THEREUPON SEPARATING THE PAPER PULP FROM THE AQUEOUS SOLUTION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-17 | 1966-06-18 | 1966-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-17 | 1970-06-18 | 1970-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-17 | 1974-06-18 | 1974-12-18 | $7700.00 | Window Closed / Lapsed |