US3006955A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N'-cyclohexyl or octyl, n'-beta-hydroxyethyl or propyl, n2,n2-dimethyl or diethyl-urea
Assignee: BASF SE
•
Filing: 1958-12-02
•
Granted: 1961-10-31
•
Expires: 1978-12-02
Abstract
No abstract record available.
Inventors
- 👤 Steinbrunn Gustav
- 👤 Fischer Adolf
- 👤 Stummeyer Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:18
CPC Classifications
C; C07; C07C; C07C275/00; C07C275/28; C07C275/26; C07C2601/00; C07C2601/12; C07C2601/14; C07C2601/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
UREA DERIVATES OF THE FORMULA
Claim 2
Dependent Claim
5 words
UREA DERIVATES OF THE FORMULA
References Cited (Backward Citations)
US2661272A
Cited
US2779669A
Cited
US2788268A
Cited
US2876260A
Cited
US2870205A
Cited
DE1055287B
Cited
DE1064051B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-30 | 1965-05-01 | 1965-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-30 | 1969-05-01 | 1969-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-30 | 1973-05-01 | 1973-10-31 | $7700.00 | Window Closed / Lapsed |