US2540157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tertiary rosin alcohols and method for making the same
Assignee: Pierce Lab Inc
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Filing: 1946-10-26
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Granted: 1951-02-06
•
Expires: 1966-10-26
Abstract
No abstract record available.
Inventors
- 👤 Harold H Zeiss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:14
CPC Classifications
C; C07; C07C; C07C33/00; C07C33/34; C07C29/00; C07C29/36; C07C29/38; C07C29/40; C07B; C07B2200/00; C07B2200/07; C07C2603/00; C07C2603/02; C07C2603/04; C07C2603/22; C07C2603/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
A MEMBER OF THE GROUP CONSISTING OF THE TERTIARY ROSIN ALCOHOLS OF WHICH THE ROSIN NUCLEUS IS THAT OF AN UNMODIFIED PRIMARY ROSIN ACID, AND OF WHICH THE ALCOHOLIC SUBSTITUENT CONTAINS TWO GROUPS SELECTED FROM THE CLASS CONSISTING OF LOWER ALKYL AND ARYL GROUPS.
Claim 2
Dependent Claim
44 words
A MEMBER OF THE GROUP CONSISTING OF THE TERTIARY ROSIN ALCOHOLS OF WHICH THE ROSIN NUCLEUS IS THAT OF AN UNMODIFIED PRIMARY ROSIN ACID, AND OF WHICH THE ALCOHOLIC SUBSTITUENT CONTAINS TWO GROUPS SELECTED FROM THE CLASS CONSISTING OF LOWER ALKYL AND ARYL GROUPS.
References Cited (Backward Citations)
US2359826A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-05 | 1954-08-07 | 1955-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-05 | 1958-08-07 | 1959-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-05 | 1962-08-07 | 1963-02-06 | $7700.00 | Window Closed / Lapsed |