US2884456A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-substituted-1-aminoalkyl-3-arylindenes and indanes
Assignee: Mead Johnson and Co LLC
•
Filing: 1956-12-05
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Granted: 1959-04-28
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Expires: 1976-12-05
Abstract
No abstract record available.
Inventors
- 👤 Kenneth N Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:47
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/45; C07C45/46; C07D; C07D211/00; C07D211/04; C07D211/06; C07D211/08; C07D211/10; C07D211/14; C07D295/00; C07D295/04; C07D295/08; C07D295/084; C07D295/088; C07D333/00; C07D333/02; C07D333/04; C07D333/06; C07D333/14; C07D333/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A COMPOUND OF THE STRUCTURE
Claim 2
Dependent Claim
5 words
A COMPOUND OF THE STRUCTURE
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) | 1962-04-27 | 1962-10-27 | 1963-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-27 | 1966-10-27 | 1967-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-27 | 1970-10-27 | 1971-04-28 | $7700.00 | Window Closed / Lapsed |