Patent US3845069A successfully refreshed from Google Patents.
US3845069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1-(2-benzothiazolyl)-1-ethyl-3-methyl-urea
Assignee: Bayer AG
•
Filing: 1972-08-09
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Granted: 1974-10-29
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Expires: 1992-08-09
Abstract
Abstract 1. 1-(2-BENZOTHIAZOLYL)-1-ETHYL-3-METHYL-UREA.
Inventors
- 👤 W Schafer
- 👤 K Sasse
- 👤 L Eue
- 👤 R Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:37
CPC Classifications
C; C07; C07D; C07D277/00; C07D277/60; C07D277/62; C07D277/68; C07D277/82
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
1 words
1-(2-BENZOTHIAZOLYL)-1-ETHYL-3-METHYL-UREA.
Claim 2
Dependent Claim
1 words
1-(2-BENZOTHIAZOLYL)-1-ETHYL-3-METHYL-UREA.
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) | 1977-10-28 | 1978-04-29 | 1978-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-28 | 1982-04-29 | 1982-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-28 | 1986-04-29 | 1986-10-29 | $7700.00 | Window Closed / Lapsed |