Patent US2924580A successfully refreshed from Google Patents.
US2924580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Divinyl benzene dioxide compositions
Assignee: Union Carbide Corp
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Filing: 1957-08-08
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Granted: 1960-02-09
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Expires: 1977-08-08
Abstract
No abstract record available.
Inventors
- 👤 Phillips Benjamin
- 👤 Jr Charles W Mcgary
- 👤 Jr Charles T Patrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:09
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/22; C08G59/24; C08G59/245
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
A CURABLE COMPOSITION COMPRISING DIVINYLBENZENE DIOXIDE AND A CATALYST SELECTED FROM THE GROUP CONSISTING OF STRONG MINERAL ACIDS, SULFONIC ACIDS, METAL HALIDE LEWIS ACIDS, ALKALI METAL HYDROXIDES, QUATERNARY AMMONIUM HYDROXIDES, AND TERTIARY AMINES.
Claim 2
Dependent Claim
33 words
A CURABLE COMPOSITION COMPRISING DIVINYLBENZENE DIOXIDE AND A CATALYST SELECTED FROM THE GROUP CONSISTING OF STRONG MINERAL ACIDS, SULFONIC ACIDS, METAL HALIDE LEWIS ACIDS, ALKALI METAL HYDROXIDES, QUATERNARY AMMONIUM HYDROXIDES, AND TERTIARY AMINES.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-08 | 1963-08-10 | 1964-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-08 | 1967-08-10 | 1968-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-08 | 1971-08-10 | 1972-02-09 | $7700.00 | Window Closed / Lapsed |