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US3532749A
Expired / Lapsed
US
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N'-propargyl-n**2-cyclopropyl-ethylenediamines and the salts thereof
Assignee: Aldrich Chemical Co Inc
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Filing: 1967-09-29
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Granted: 1970-10-06
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Expires: 1987-09-29
Abstract
No abstract record available.
Inventors
- 👤 John H Biel
- 👤 Edward J Warawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:18
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/30; C07D207/32; C07D207/325; C07D333/00; C07D333/02; C07D333/04; C07D333/06; C07D333/14; C07D333/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3365458A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-05 | 1974-04-06 | 1974-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-05 | 1978-04-06 | 1978-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-05 | 1982-04-06 | 1982-10-06 | $7700.00 | Window Closed / Lapsed |