US2501200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for production of menthane aldehyde
Assignee: FMC Corp
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Filing: 1946-12-26
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Granted: 1950-03-21
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Expires: 1966-12-26
Abstract
No abstract record available.
Inventors
- 👤 Richard B Wearn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:30
CPC Classifications
C; C11; C11B; C11B9/00; C11B9/0003; C07; C07C; C07C45/00; C07C45/49; C07C45/50; Y; Y10; Y10S; Y10S585/00; Y10S585/929; Y10S585/947
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A PROCESS WHICH COMPRISES REACTING WITH HYDROGEN AT ELEVATED TEMPERATURE AND PRESSURE A MEMBER SELECTED FROM THE CLASS CONSISTING OF LIMONENE AND DIPENTENE IN THE PRESENCE OF A HYDROGENATION CATALYST UNTIL THE SIDE CHAIN DOUBLE BOND IS SATURATED, THEN INTRODUCING CARBON MONOXIDE INTO THE REACTION CHAMBER AND SUBJECTING THE REACTION MIXTURE TO ELEVATED TEMPERATURE AND PRESSURE UNTIL AN ALDEHYDE GROUP IS SUBSTITUTED ON THE 2-POSITION OF SAID REACTANT.
Claim 2
Dependent Claim
68 words
A PROCESS WHICH COMPRISES REACTING WITH HYDROGEN AT ELEVATED TEMPERATURE AND PRESSURE A MEMBER SELECTED FROM THE CLASS CONSISTING OF LIMONENE AND DIPENTENE IN THE PRESENCE OF A HYDROGENATION CATALYST UNTIL THE SIDE CHAIN DOUBLE BOND IS SATURATED, THEN INTRODUCING CARBON MONOXIDE INTO THE REACTION CHAMBER AND SUBJECTING THE REACTION MIXTURE TO ELEVATED TEMPERATURE AND PRESSURE UNTIL AN ALDEHYDE GROUP IS SUBSTITUTED ON THE 2-POSITION OF SAID REACTANT.
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) | 1953-03-20 | 1953-09-19 | 1954-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-20 | 1957-09-19 | 1958-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-20 | 1961-09-19 | 1962-03-21 | $7700.00 | Window Closed / Lapsed |