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US2790805A
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Amino-halogenodicyanopyridines and their preparation
Assignee: EIDP Inc
•
Filing: 1955-04-15
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Granted: 1957-04-30
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Expires: 1975-04-15
Abstract
No abstract record available.
Inventors
- 👤 Jr Ernest Lewis Little
- 👤 Middleton William Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:11
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/78; C07D213/84; C07D213/85
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
A COMPOUND REPRESENTED BY THE FORMULA,
Claim 2
Dependent Claim
6 words
A COMPOUND REPRESENTED BY THE FORMULA,
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) | 1960-04-29 | 1960-10-29 | 1961-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-29 | 1964-10-29 | 1965-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-29 | 1968-10-29 | 1969-04-30 | $7700.00 | Window Closed / Lapsed |