US3244692A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reaction product of an azodicarboxylate and an amine
Assignee: Gulf Oil Corp
•
Filing: 1962-09-04
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Granted: 1966-04-05
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Expires: 1982-09-04
Abstract
No abstract record available.
Inventors
- 👤 George E Ham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:52
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/04; C08J9/06; C08J9/10; C08J9/102; Y; Y10; Y10S; Y10S534/00; Y10S534/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
THE PRODUCT OBTAINED BY REACTING IN THE LIQUID STATE A LOWER ALKYL AZODICARBOXYLATE AND AN AMINE SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYLENEDIAMINE, PIPERAZINE AND P-PHENYLENEDIAMINE, BOTH THE ALKYL AZODICARBOXYLATE AND THE AMINE BEING DISSOLVED IN A SOLVENT IN WHICH SAID PRODUCT FORMS A SOLID PRECIPITATE.
Claim 2
Dependent Claim
47 words
THE PRODUCT OBTAINED BY REACTING IN THE LIQUID STATE A LOWER ALKYL AZODICARBOXYLATE AND AN AMINE SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYLENEDIAMINE, PIPERAZINE AND P-PHENYLENEDIAMINE, BOTH THE ALKYL AZODICARBOXYLATE AND THE AMINE BEING DISSOLVED IN A SOLVENT IN WHICH SAID PRODUCT FORMS A SOLID PRECIPITATE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |