Patent US2956068A successfully refreshed from Google Patents.
US2956068A
Expired / Lapsed
US
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Preparation of acylamino carboxylic acids
Assignee: Henkel AG and Co KGaA
•
Filing: 1957-08-09
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Granted: 1960-10-11
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Expires: 1977-08-09
Abstract
No abstract record available.
Inventors
- 👤 Dohr Manfred
- 👤 Krause Horst-Jurgen
- 👤 Wulff Carl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:18
CPC Classifications
C; C07; C07K; C07K1/00; C07K1/006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
AN ACYLAMINOCARBOXYLIC ACID HAVING THE FORMULA
Claim 2
Dependent Claim
6 words
AN ACYLAMINOCARBOXYLIC ACID HAVING THE FORMULA
References Cited (Backward Citations)
US2041265A
Cited
US2071253A
Cited
GB535421A
Cited
US2562797A
Cited
US2689170A
Cited
US2731480A
Cited
FR1094480A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-11 | 1964-04-11 | 1964-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-11 | 1968-04-11 | 1968-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-11 | 1972-04-11 | 1972-10-11 | $7700.00 | Window Closed / Lapsed |