US2933520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Addition products of phenols and keto acids and derivatives of the same
Assignee: SC Johnson and Son Inc
•
Filing: 1953-08-27
•
Granted: 1960-04-19
•
Expires: 1973-08-27
Abstract
No abstract record available.
Inventors
- 👤 Alfred R Bader
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:46
CPC Classifications
C; C07; C07C; C07C59/00; C07C59/40; C07C59/42; C07C59/52
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
73 words
A COMPOUND OF THE STRUCTURE WHEREIN R IS A MEMBER OF THE CLASS CONSISTING OF HYDROGEN AND LOWER ALKYL RADICALS, R1 IS AN ALKYL RADICAL, R2 IS AN ALKYLENE RADICAL CONTAINING AT LEAST 2 CARBON ATOMS, R3 IS A LOWER ALKYL RADICAL, AND N IS A NUMBER SELECTED FROM THE CLASS CONSISTING OF 0, 1 AND 2, THE HYDROXYL GROUPS BEING ATTACHED TO THE 4-POSITION OF THE RING STRUCTURE WHEN N IS 0.
Claim 2
Dependent Claim
73 words
A COMPOUND OF THE STRUCTURE WHEREIN R IS A MEMBER OF THE CLASS CONSISTING OF HYDROGEN AND LOWER ALKYL RADICALS, R1 IS AN ALKYL RADICAL, R2 IS AN ALKYLENE RADICAL CONTAINING AT LEAST 2 CARBON ATOMS, R3 IS A LOWER ALKYL RADICAL, AND N IS A NUMBER SELECTED FROM THE CLASS CONSISTING OF 0, 1 AND 2, THE HYDROXYL GROUPS BEING ATTACHED TO THE 4-POSITION OF THE RING STRUCTURE WHEN N IS 0.
Claim 3
Dependent Claim
1 words
METHYL-4,4-BIS(4-HYDROXYPHENY)PENTANOATE.
Claim 4
Dependent Claim
1 words
METHYL-4,4-BIS(4-HYDROXYPHENY)PENTANOATE.
References Cited (Backward Citations)
DE362382C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |