US2843565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Butenyl phenol-aldehyde resins
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
2026-11-04 12:37
CPC Classifications
C; C08; C08G; C08G8/00; C08G8/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
A LIGHT COLORED RESINOUS MATERIAL COMPRISING THE PRODUCT OF THE ACIDIC 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 15 PERCENT TO 45 PERCENT BY WEIGHT OF DIAND TRIBUTENYLPHENOLS.
Claim 2
Dependent Claim
52 words
A LIGHT COLORED RESINOUS MATERIAL COMPRISING THE PRODUCT OF THE ACIDIC 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 15 PERCENT TO 45 PERCENT BY WEIGHT OF DIAND TRIBUTENYLPHENOLS.
References Cited (Backward Citations)
US2006043A
Cited
US2242250A
Cited
US2175393A
Cited
AT155968B
Cited
US2587578A
Cited
US2657185A
Cited
US2656335A
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 |