Patent US2717895A successfully refreshed from Google Patents.
US2717895A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gamma-hydroxy-tertiary amines
Assignee: Merck and Co Inc
•
Filing: 1951-06-05
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Granted: 1955-09-13
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Expires: 1971-06-05
Abstract
No abstract record available.
Inventors
- 👤 James M Sprague
- 👤 Everett M Schultz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:45
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
A COMPOUND CHOSEN FROM THE CLASS CONSISTING OF COMPOUNDS OF THE FORMULA
Claim 2
Dependent Claim
12 words
A COMPOUND CHOSEN FROM THE CLASS CONSISTING OF COMPOUNDS OF THE FORMULA
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-12 | 1959-03-14 | 1959-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-12 | 1963-03-14 | 1963-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-12 | 1967-03-14 | 1967-09-13 | $7700.00 | Window Closed / Lapsed |