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US2932646A
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Nu-amino-nitrogen containing heterocyclic compounds
Assignee: LAKESIDE LAB Inc
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Filing: 1957-08-30
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Granted: 1960-04-12
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Expires: 1977-08-30
Abstract
No abstract record available.
Inventors
- 👤 John H Biel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 05:21
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/22; C07D295/28; C07D209/00; C07D209/02; C07D209/44; C07D211/00; C07D211/92; C07D211/98; C07D217/00; C07D217/02; C07D217/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2636006A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-12 | 1963-10-12 | 1964-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-12 | 1967-10-12 | 1968-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-12 | 1971-10-12 | 1972-04-12 | $7700.00 | Window Closed / Lapsed |