Patent US2858316A successfully refreshed from Google Patents.
US2858316A
Expired / Lapsed
US
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New piperidine derivatives
Assignee: UCB SA
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Filing: 1957-08-19
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Granted: 1958-10-28
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Expires: 1977-08-19
Abstract
No abstract record available.
Inventors
- 👤 Morren Henri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:16
CPC Classifications
C; C07; C07D; C07D211/00; C07D211/04; C07D211/06; C07D211/36; C07D211/60; C07D211/62; C07D211/64
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
A MEMBER SELECTED FROM THE GROUP CONSISTING OF, PIPERDINE DERIVATIVES OF THE GENERAL FORMULA
Claim 2
Dependent Claim
14 words
A MEMBER SELECTED FROM THE GROUP CONSISTING OF, PIPERDINE DERIVATIVES OF THE GENERAL 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) | 1961-10-27 | 1962-04-28 | 1962-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-27 | 1966-04-28 | 1966-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-27 | 1970-04-28 | 1970-10-28 | $7700.00 | Window Closed / Lapsed |