Patent US4136985A successfully refreshed from Google Patents.
Patent US3121084A successfully refreshed from Google Patents.
US3121084A
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US
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Selected n, n, n'-trisubstituted amidines and their preparation by reaction of compounds with-nh2 groups with amide acetals
Assignee: EIDP Inc
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Filing: 1962-09-17
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Granted: 1964-02-11
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Expires: 1982-09-17
Abstract
No abstract record available.
Inventors
- 👤 Hilmer E Winberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:13
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/003; C07; C07C; C07C275/00; C07C275/04; C07C275/06; C07C275/14; C07D; C07D295/00; C07D295/22; C07D295/28; C07D295/30; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/22; C07F9/24; C07F9/2454; C07F9/2458; Y; Y10; Y10S; Y10S8/00; Y10S8/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
THE PROCESS WHICH COMPRISES REACTING TOGETHER: (A) A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
12 words
THE PROCESS WHICH COMPRISES REACTING TOGETHER: (A) 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) | 1967-02-10 | 1967-08-12 | 1968-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-10 | 1971-08-12 | 1972-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-10 | 1975-08-12 | 1976-02-11 | $7700.00 | Window Closed / Lapsed |