US3472854A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1-((benzimidazolyl)-lower-alkyl)-4-substituted-piperazines
Assignee: STWB Inc
•
Filing: 1967-05-29
•
Granted: 1969-10-14
•
Expires: 1987-05-29
Abstract
No abstract record available.
Inventors
- 👤 Sydney Archer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:25
CPC Classifications
C; C07; C07D; C07D403/00; C07D403/02; C07D403/06; C07D209/00; C07D209/56; C07D209/58; C07D209/60; C07D215/00; C07D215/02; C07D215/16; C07D215/48; C07D215/54; C07D217/00; C07D217/12; C07D217/14; C07D231/00; C07D231/54; C07D231/56; C07D233/00; C07D233/54; C07D233/64; C07D235/00; C07D235/02; C07D235/04; C07D235/06; C07D235/14; C07D295/00; C07D295/04; C07D295/06; C07D295/073; C07D295/12; C07D295/125; C07D295/13; C07D295/14; C07D295/145; C07D295/15; C07D333/00; C07D333/50; C07D333/52; C07D333/54; C07D333/60; C07D471/00; C07D471/02; C07D471/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2935514A
Cited
US3004978A
Cited
US2927924A
Cited
US3133069A
Cited
US3293260A
Cited
US3318880A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-13 | 1973-04-14 | 1973-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-13 | 1977-04-14 | 1977-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-13 | 1981-04-14 | 1981-10-14 | $7700.00 | Window Closed / Lapsed |