Patent US3146262A successfully refreshed from Google Patents.
US3146262A
Expired / Lapsed
US
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Imino-alkyl-ureas
Assignee: Bayer AG
•
Filing: 1960-12-20
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Granted: 1964-08-25
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Expires: 1980-12-20
Abstract
No abstract record available.
Inventors
- 👤 Schafer Werner
- 👤 Wegler Richard
- 👤 Eue Ludwig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:10
CPC Classifications
C; C07; C07C; C07C273/00; C07C273/18; C07C273/1809; C07C273/1818; C07C273/1827; C07C273/1836; C07C273/1845; C07C275/00; C07C275/46; C07C275/48; C07C275/56; C07C335/00; C07C335/04; C07C335/24; C07C335/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A CARBAMIDE-AMIDINE OF THE FORMULA:
Claim 2
Dependent Claim
5 words
A CARBAMIDE-AMIDINE 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) | 1967-08-25 | 1968-02-24 | 1968-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-25 | 1972-02-24 | 1972-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-25 | 1976-02-24 | 1976-08-25 | $7700.00 | Window Closed / Lapsed |