US2992193A
Expired / Lapsed
US
⏱️ 0.0 years remaining
New epoxy resins
Assignee: BASF Schweiz AG
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Filing: 1959-07-07
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Granted: 1961-07-11
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Expires: 1979-07-07
Abstract
No abstract record available.
Inventors
- 👤 Porret Daniel
- 👤 Fisch Willy
- 👤 Ernst Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:53
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/22; C08G59/24; C07; C07D; C07D303/00; C07D303/02; C07D303/12; C07D303/18; C07D303/20; C07D303/24
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
52 words
A COMPOSITION OF MATTER COMPRISING A DIELS-ALDER ADDUCT OF (A) A DIENE SELECTED FROM THE GROUP CONSISTING OF HEXACHLOROCYCLOPENTADIENE AND 1,1-DIMETHOXY-2,3,4,5,TETRACHLOROCYCLOPENTADIENE AND (B) A DIENOPHILIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF 2-BUTENE-1,4DIOL-DIGLYCIDYL ETHER, THE DIGLYCIDYL ETHER OF 1,1-BIS-(HYDROXYMETHYL)-CYCLOHEX-3-ENE AND THE DIGLYCIDYL ETHER OF 1,1-BIS-(HYDROXYMETHYL)-6-METHYLCYCLOHEX-3-ENE AND A CURING AGENT FOR EPOXY RESINS.
References Cited (Backward Citations)
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US2616899A
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US2870170A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-10 | 1965-01-09 | 1965-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-10 | 1969-01-09 | 1969-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-10 | 1973-01-09 | 1973-07-11 | $7700.00 | Window Closed / Lapsed |