US2687436A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Substituted 3-(2-naphthyl)-cyclohexane
Assignee: Merck and Co Inc
•
Filing: 1952-01-28
•
Granted: 1954-08-24
•
Expires: 1972-01-28
Abstract
No abstract record available.
Inventors
- 👤 Frederick C Novello
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:02
CPC Classifications
C; C07; C07C; C07C49/00; C07C49/587; C07C49/753; C07C45/00; C07C45/45; C07C45/61; C07C45/62; C07C45/67; C07C45/673; C07C49/703; C07C49/747
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
A 2.6-DISUBSTITUTED NAPHTHALENE COMPOUND SELECTED FROM THE CLASS OF COMPOUDS HAVING THE GENERAL FORMULAE
Claim 2
Dependent Claim
14 words
A 2.6-DISUBSTITUTED NAPHTHALENE COMPOUND SELECTED FROM THE CLASS OF COMPOUDS HAVING THE GENERAL FORMULAE
References Cited (Backward Citations)
GB514592A
Cited
US2364056A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-23 | 1958-02-22 | 1958-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-23 | 1962-02-22 | 1962-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-23 | 1966-02-22 | 1966-08-24 | $7700.00 | Window Closed / Lapsed |