US2795589A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nu-substituted imides of hexachloro bicyclo [2.2.1] heptene dicarboxylic acids
Assignee: Velsicol Chemical LLC
•
Filing: 1953-03-04
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Granted: 1957-06-11
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Expires: 1973-03-04
Abstract
No abstract record available.
Inventors
- 👤 Bluestone Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:46
CPC Classifications
C; C07; C07D; C07D209/00; C07D209/56; C07D209/58; C07D209/72; C07D209/76
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
AS A NEW COMPOSITION OF MATTER AN N-SUBSTITUTED IMIDE OF 1,4,5,6,7,7-HEXACHLOROBICYCLO-(2.2.1)-5-HEPTENE2,3-DICARBOXYLIC ACID WHEREIN THE SUBSTITUENT ON THE IMIDE NITROGEN IS THE AMINO-FREE RESIDUAL RADICAL OF A PRIMARY MONOFUNCTIONAL AMINE CONTAINING ONE TO TWENTY-TWO CARBON ATOMS OF THE GROUP CONSISTING OF ALIPHATIC HYDROCARBON AMINES, CYCLOALIPHATIC HYDROCARBON AMINES AND CARBOCYCLIC ARYL AMINES.
Claim 2
Dependent Claim
50 words
AS A NEW COMPOSITION OF MATTER AN N-SUBSTITUTED IMIDE OF 1,4,5,6,7,7-HEXACHLOROBICYCLO-(2.2.1)-5-HEPTENE2,3-DICARBOXYLIC ACID WHEREIN THE SUBSTITUENT ON THE IMIDE NITROGEN IS THE AMINO-FREE RESIDUAL RADICAL OF A PRIMARY MONOFUNCTIONAL AMINE CONTAINING ONE TO TWENTY-TWO CARBON ATOMS OF THE GROUP CONSISTING OF ALIPHATIC HYDROCARBON AMINES, CYCLOALIPHATIC HYDROCARBON AMINES AND CARBOCYCLIC ARYL AMINES.
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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) | 1960-06-10 | 1960-12-10 | 1961-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-10 | 1964-12-10 | 1965-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-10 | 1968-12-10 | 1969-06-11 | $7700.00 | Window Closed / Lapsed |