US3189648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing n, n-dialkyl-n'-arylamidines
Assignee: EIDP Inc
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Filing: 1962-04-11
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Granted: 1965-06-15
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Expires: 1982-04-11
Abstract
No abstract record available.
Inventors
- 👤 Henry J Gerjovich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:05
CPC Classifications
A; A01; A01N; A01N37/00; A01N37/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
THE PROCESS WHICH COMPRISES MIXING UNDER ANHYDROUS CONDITIONS AT ATMOSPHERIC PRESSURE AT A TEMPERATURE WITHIN THE RANGE FROM ABOUT 70* TO 180*C. A COMPOUND OF THE FORMULA:
Claim 2
Dependent Claim
27 words
THE PROCESS WHICH COMPRISES MIXING UNDER ANHYDROUS CONDITIONS AT ATMOSPHERIC PRESSURE AT A TEMPERATURE WITHIN THE RANGE FROM ABOUT 70* TO 180*C. A COMPOUND OF 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) | 1968-06-14 | 1968-12-14 | 1969-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-14 | 1972-12-14 | 1973-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-14 | 1976-12-14 | 1977-06-15 | $7700.00 | Window Closed / Lapsed |