Patent US3244750A successfully refreshed from Google Patents.
US3244750A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nu, nu'-disubstituted-aliphatic-bis-aminomethyl-cyclohexane derivatives
Assignee: Wyeth LLC
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Filing: 1963-12-06
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Granted: 1966-04-05
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Expires: 1983-12-06
Abstract
No abstract record available.
Inventors
- 👤 Leslie G Humber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:21
CPC Classifications
C; C07; C07C; C07C211/00; C07C211/01; C07C211/16; C07C211/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
3 words
1,4-BIS(CYCLOHEXYLMETHYLAMINOMETHYL) - CYCLOHEXANE.
Claim 2
Dependent Claim
3 words
1,4-BIS(CYCLOHEXYLMETHYLAMINOMETHYL) - CYCLOHEXANE.
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) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |