US2619504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of making 4(5)-p-menthen-3-one
Assignee: Newport Industries Inc
•
Filing: 1950-09-15
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Granted: 1952-11-25
•
Expires: 1970-09-15
Abstract
No abstract record available.
Inventors
- 👤 Carlisle H Bibb
- 👤 Henry E Mclaughlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:23
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
THE METHOD OF MAKING 4(5)-P-MENTHEN-3ONE WHICH COMPRISES TREATING THE NITROSOCHLORIDE OF $-3 P-MENTHENE WITH WATER AT AN ELEVATED TEMPERATURE TO PRODUCE 4(5) -P-MENTHEN-3-ONE AND HYDROXYLAMINE HYDROCHLORIDE, AND SEPARATING THE 4(5)-P-MENTHEN-3-ONE FROM THE REACTION PRODUCT.
Claim 2
Independent Claim
34 words
THE METHOD OF MAKING 4(5)-P-MENTHEN-3ONE WHICH COMPRISES TREATING THE NITROSOCHLORIDE OF $-3 P-MENTHENE WITH WATER AT AN ELEVATED TEMPERATURE TO PRODUCE 4(5) -P-MENTHEN-3-ONE AND HYDROXYLAMINE HYDROCHLORIDE, AND SEPARATING THE 4(5)-P-MENTHEN-3-ONE FROM THE REACTION PRODUCT.
References Cited (Backward Citations)
US2435570A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-25 | 1956-05-26 | 1956-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-25 | 1960-05-26 | 1960-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-25 | 1964-05-26 | 1964-11-25 | $7700.00 | Window Closed / Lapsed |