US2950323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mercaptan synthesis
Assignee: Pennwalt Corp
•
Filing: 1958-04-10
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Granted: 1960-08-23
•
Expires: 1978-04-10
Abstract
No abstract record available.
Inventors
- 👤 Loev Bernard
- 👤 John T Massengale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:23
CPC Classifications
C; C07; C07C; C07C319/00; C07C319/02; C07C319/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
30 words
A METHOD FOR MANUFACTURING MERCAPTANS WHICH COMPRISES THE STEPS OF FORMING A MIXTURE OF HYDROGEN SULFIDE AND AN ALCOHOL HAVING FROM 3 TO 18 CARBON ATOMS AND HAVING THE FORMULA:
Claim 2
Independent Claim
30 words
A METHOD FOR MANUFACTURING MERCAPTANS WHICH COMPRISES THE STEPS OF FORMING A MIXTURE OF HYDROGEN SULFIDE AND AN ALCOHOL HAVING FROM 3 TO 18 CARBON ATOMS AND HAVING THE FORMULA:
References Cited (Backward Citations)
GB454668A
Cited
US2816146A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-23 | 1964-02-22 | 1964-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-23 | 1968-02-22 | 1968-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-23 | 1972-02-22 | 1972-08-23 | $7700.00 | Window Closed / Lapsed |