US2843566A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkenylphenol-aldehyde
Assignee: PPG Industries Inc
•
Filing: 1953-11-03
•
Granted: 1958-07-15
•
Expires: 1973-11-03
Abstract
No abstract record available.
Inventors
- 👤 Roger M Christenson
- 👤 Lowell O Cummings
- 👤 Alfred R Bader
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:13
CPC Classifications
C; C08; C08G; C08G8/00; C08G8/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A LIGHT COLORED RESINOUS MATERIAL COMPRISING THE PRODUCT OF THE ALKALINE CONDENSATION OF AN ALDEHYDE CONTAINING ONLY ATOMS OF CARBON, HYDROGEN, AND OXYGEN, WITH A MIXTURE OF BUTENYLPHENOLS CONTAINING ABOUT 55 PERCENT TO 85 PERCENT BY WEIGHT OF ORTHO- AND PARA-MONOBUTENYLPHENOLS, AND ABOUT 15 PERCENT TO 45 PERCENT BY WEIGHT OF DI- AND TRI-BUTENYLPHENOLS.
Claim 2
Dependent Claim
54 words
A LIGHT COLORED RESINOUS MATERIAL COMPRISING THE PRODUCT OF THE ALKALINE CONDENSATION OF AN ALDEHYDE CONTAINING ONLY ATOMS OF CARBON, HYDROGEN, AND OXYGEN, WITH A MIXTURE OF BUTENYLPHENOLS CONTAINING ABOUT 55 PERCENT TO 85 PERCENT BY WEIGHT OF ORTHO- AND PARA-MONOBUTENYLPHENOLS, AND ABOUT 15 PERCENT TO 45 PERCENT BY WEIGHT OF DI- AND TRI-BUTENYLPHENOLS.
References Cited (Backward Citations)
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Cited
US2242250A
Cited
US2175393A
Cited
AT155968B
Cited
US2587578A
Cited
US2657185A
Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-14 | 1962-01-13 | 1962-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-14 | 1966-01-13 | 1966-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-14 | 1970-01-13 | 1970-07-15 | $7700.00 | Window Closed / Lapsed |