US2812355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of hydroxycitronellal
Assignee: Colgate Palmolive Co
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Filing: 1954-10-11
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Granted: 1957-11-05
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Expires: 1974-10-11
Abstract
No abstract record available.
Inventors
- 👤 Fox Arthur Lawrence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:27
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/51; C07C45/54; C07C45/61; C07C45/64
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
46 words
A PROCES OF MAKING HYDROXYCITRONELLAL WHICH COMPRISES MAKING CITRONELLAL-BISULFITE ADDUCT, ADMIXING LIQUID SULFUR DIOXIDE WITH THE CITRONELLAL-BISULFITE ADDUCT AND HYDRATING SAID ADDUCT WITH AQUEOUS HYDRATING AGENT IN THE PRESENCE OF LIQUID SULFUR DIOXIDE, TO FROM HYDROXYCITRONELLAL-BISULFITE ADDUCT, CONVERTING SAID ADDUCT TO HYDROXYCITRONELLAL AND RECOVERING THE HYDROXYCITRONELLAL.
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) | 1960-11-04 | 1961-05-06 | 1961-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-04 | 1965-05-06 | 1965-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-04 | 1969-05-06 | 1969-11-05 | $7700.00 | Window Closed / Lapsed |