US3072658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phenylpiperazinone derivatives
Assignee: Bayer Corp
•
Filing: 1960-12-27
•
Granted: 1963-01-08
•
Expires: 1980-12-27
Abstract
No abstract record available.
Inventors
- 👤 Otis E Fancher
- 👤 Hayao Shin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:36
CPC Classifications
C; C07; C07D; C07D241/00; C07D241/02; C07D241/06; C07D241/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
1 words
1-PHENYL-4-METHYL-2-PIPERAZINONE.
Claim 2
Dependent Claim
1 words
1-PHENYL-4-METHYL-2-PIPERAZINONE.
References Cited (Backward Citations)
US2653153A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |