US2817677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phenanthrene diols and preparation thereof
Assignee: Hercules Powder Co
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Filing: 1956-04-04
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Granted: 1957-12-24
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Expires: 1976-04-04
Abstract
No abstract record available.
Inventors
- 👤 Lee A Subluskey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:50
CPC Classifications
C; C07; C07C; C07C35/00; C07C35/22; C07C35/37; C07C35/42; C07C29/00; C07C29/132; C07C29/136; C07C29/147; C12; C12C; C12C11/00; C12C11/02; C07C2603/00; C07C2603/02; C07C2603/04; C07C2603/22; C07C2603/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
AS A NEW COMPOSITION OF MATTER A COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE DIOL, OBTAINED BY THE REDUCTION WITH AN ALKALI METAL ALUMINUM HYDRIDE OF A LACTONE SELECTED FROM THE GROUP CONSISTING OF THE LACTONE OF HYDROXYTETRAHYDROABIETIC ACID AND THE LACTONE OF A HYDROXYTETRAHYDRODEXTROPIMARIC ACID, AND THE MONOESTERS OF SAID DIOLS WHEREIN THE ACYL RADICAL OF THE ESTER GROUP IS THAT OF AN ACID SELECTED FROM THE GROUP CONSISTING OF LOWER ALKANOIC ACIDS AND MONONUCLEAR AROMATIC CARBOXYLIC ACIDS.
Claim 2
Dependent Claim
80 words
AS A NEW COMPOSITION OF MATTER A COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE DIOL, OBTAINED BY THE REDUCTION WITH AN ALKALI METAL ALUMINUM HYDRIDE OF A LACTONE SELECTED FROM THE GROUP CONSISTING OF THE LACTONE OF HYDROXYTETRAHYDROABIETIC ACID AND THE LACTONE OF A HYDROXYTETRAHYDRODEXTROPIMARIC ACID, AND THE MONOESTERS OF SAID DIOLS WHEREIN THE ACYL RADICAL OF THE ESTER GROUP IS THAT OF AN ACID SELECTED FROM THE GROUP CONSISTING OF LOWER ALKANOIC ACIDS AND MONONUCLEAR AROMATIC CARBOXYLIC ACIDS.
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) | 1960-12-23 | 1961-06-24 | 1961-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-23 | 1965-06-24 | 1965-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-23 | 1969-06-24 | 1969-12-24 | $7700.00 | Window Closed / Lapsed |