Patent US3055929A successfully refreshed from Google Patents.
US3055929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous sulphonation of organic substances
Assignee: Individual
•
Filing: 1958-10-01
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Granted: 1962-09-25
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Expires: 1978-10-01
Abstract
No abstract record available.
Inventors
- 👤 Bozzetto Giuseppe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:10
CPC Classifications
C; C07; C07C; C07C303/00; C07C303/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A PROCESS FOR THE CONTINUOUS SULFATION OF HIGHER FATTY ALCOHOL, COMPRISING THE STEPSOF SEPARATELY INTRODUCING THE ALCOHOL AND CHLORSULFONIC ACID ADJACENT THE CENTER OF A REACTION VESSEL, CENTRIFUGALLY PROPELLING THE INTRODUCED ALCOHOL AND THE CHLORSULFONIC ACID TOWARD THE SIDE WALL OF SAID VESSEL SO THAT CONTINUOUS SULFATION OF THE ALCOHOL OCCURS DURING THE CENTRIFUGAL MOVEMENT THEREOF IN SAID VESSEL, AND CONTINUOUSLY EVACUATING SAID VESSEL SO AS TO MAINTAIN A SUBATMOSPHERIC PRESSURE THEREIN WHILE EXHAUSTING FROM THE VESSEL THE HYDROGEN CHLORIDE EVOLVED DURING SAID CONTINUOUS SULFATION.
Claim 2
Dependent Claim
85 words
A PROCESS FOR THE CONTINUOUS SULFATION OF HIGHER FATTY ALCOHOL, COMPRISING THE STEPSOF SEPARATELY INTRODUCING THE ALCOHOL AND CHLORSULFONIC ACID ADJACENT THE CENTER OF A REACTION VESSEL, CENTRIFUGALLY PROPELLING THE INTRODUCED ALCOHOL AND THE CHLORSULFONIC ACID TOWARD THE SIDE WALL OF SAID VESSEL SO THAT CONTINUOUS SULFATION OF THE ALCOHOL OCCURS DURING THE CENTRIFUGAL MOVEMENT THEREOF IN SAID VESSEL, AND CONTINUOUSLY EVACUATING SAID VESSEL SO AS TO MAINTAIN A SUBATMOSPHERIC PRESSURE THEREIN WHILE EXHAUSTING FROM THE VESSEL THE HYDROGEN CHLORIDE EVOLVED DURING SAID CONTINUOUS SULFATION.
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) | 1965-09-24 | 1966-03-26 | 1966-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-24 | 1970-03-26 | 1970-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-24 | 1974-03-26 | 1974-09-25 | $7700.00 | Window Closed / Lapsed |