Patent US2907738A successfully refreshed from Google Patents.
US2907738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixed resin acid esters of 4, 4-bis(4-hydroxyaryl) pentanoic acid
Assignee: SC Johnson and Son Inc
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Filing: 1955-06-30
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Granted: 1959-10-06
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Expires: 1975-06-30
Abstract
No abstract record available.
Inventors
- 👤 Sylvan O Greenlee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:14
CPC Classifications
C; C09; C09F; C09F1/00; C09F1/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
A NEW COMPOSITION OF MATTER COMPRISING THE MIXED ESTER OF A FUSIBLE POLYHYDRIC ALCOHOL, A NATURAL RESIN ACID, AND A PENTANOIC ACID CONSISTING ESSENTIALLY OF 4,4 BIS(4HYDROXYARYL) PENTANOIC ACID WHEREIN THE HYDROXYARYL RADICAL IS A HYDROXYPHENYL RAIDCAL AND IS FREE FROM SUBSTITUENTS OTHER THAN ALKYL GROUPS OF FROM 1-5 CARBON ATOMS.
Claim 2
Dependent Claim
51 words
A NEW COMPOSITION OF MATTER COMPRISING THE MIXED ESTER OF A FUSIBLE POLYHYDRIC ALCOHOL, A NATURAL RESIN ACID, AND A PENTANOIC ACID CONSISTING ESSENTIALLY OF 4,4 BIS(4HYDROXYARYL) PENTANOIC ACID WHEREIN THE HYDROXYARYL RADICAL IS A HYDROXYPHENYL RAIDCAL AND IS FREE FROM SUBSTITUENTS OTHER THAN ALKYL GROUPS OF FROM 1-5 CARBON ATOMS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-05 | 1963-04-06 | 1963-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-05 | 1967-04-06 | 1967-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-05 | 1971-04-06 | 1971-10-06 | $7700.00 | Window Closed / Lapsed |