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US2475718A
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Process for the hydrogenation of naphthalene compounds
Assignee: Merck Sharp & Dohme LLC
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Filing: 1946-08-12
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Granted: 1949-07-12
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Expires: 1966-08-12
Abstract
No abstract record available.
Inventors
- 👤 Papa Domenick
- 👤 Schwenk Erwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:45
CPC Classifications
C; C07; C07C; C07C1/00; C07C1/20; C07C1/22; C07C5/00; C07C5/02; C07C5/10; C07C5/11; C07C2521/00; C07C2521/02; C07C2525/00; C07C2525/02; C07C2602/00; C07C2602/02; C07C2602/04; C07C2602/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-11 | 1953-01-10 | 1953-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-11 | 1957-01-10 | 1957-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-11 | 1961-01-10 | 1961-07-12 | $7700.00 | Window Closed / Lapsed |