US2757193A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulfonation of turpentine
Assignee: Individual
•
Filing: 1951-10-15
•
Granted: 1956-07-31
•
Expires: 1971-10-15
Abstract
No abstract record available.
Inventors
- 👤 Zoppa Arthur Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:22
CPC Classifications
C; C07; C07C; C07C309/00; Y; Y10; Y10S; Y10S524/00; Y10S524/925
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
THE PROCESS FOR MAKING WATER-SOLUBLE ALKALI SALTS OF SULFONATED TURPENTINE, COMPRISING REACTING TURPENTINE WITH CONCENTRATED SULPHURIC ACID IN THE ABSENCE OF A SUBSTANTIAL AMOUNT OF WATER AT A TEMPERATURE BETWEEN 4* C. AND 30* C. TO PRODUCE A MIXTURE COMPRISING A LIGHT LAYER AND A HEAVY LAYER, AND AT LEAST PARTIALLY NEUTRALIZING FROM THE HEAVY LAYER, AND AT LEAST PARTIALLY NEUTRALIZING SAID HEAVY ACIDIC LAYER WITH AN ALKALI BASE.
Claim 2
Dependent Claim
69 words
THE PROCESS FOR MAKING WATER-SOLUBLE ALKALI SALTS OF SULFONATED TURPENTINE, COMPRISING REACTING TURPENTINE WITH CONCENTRATED SULPHURIC ACID IN THE ABSENCE OF A SUBSTANTIAL AMOUNT OF WATER AT A TEMPERATURE BETWEEN 4* C. AND 30* C. TO PRODUCE A MIXTURE COMPRISING A LIGHT LAYER AND A HEAVY LAYER, AND AT LEAST PARTIALLY NEUTRALIZING FROM THE HEAVY LAYER, AND AT LEAST PARTIALLY NEUTRALIZING SAID HEAVY ACIDIC LAYER WITH AN ALKALI BASE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-31 | 1960-01-30 | 1960-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-31 | 1964-01-30 | 1964-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-31 | 1968-01-30 | 1968-07-31 | $7700.00 | Window Closed / Lapsed |