US3038013A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color improvement in synthesis of polysulfides
Assignee: Phillips Petroleum Co
•
Filing: 1959-08-25
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Granted: 1962-06-05
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Expires: 1979-08-25
Abstract
No abstract record available.
Inventors
- 👤 Paul F Warner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:20
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/24; C10L1/2406; C07; C07C; C07C319/00; C07C319/22; C07C319/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
A PROCESS FOR PREPARING AN ORGANIC POLYSULFIDE WHICH COMPRISES REACTING A MERCAPTAN WITH A SULFUR IN THE PRESENCE OF A CATALYTIC AMOUNT OF LIME, HAVING PRESENT IN THE REACTION ZONE A FINELY DIVIDED METAL SELECTED FROM THE GROUP CONSISTING OF IRON, ALUMINUM, AND ZINC.
Claim 2
Dependent Claim
44 words
A PROCESS FOR PREPARING AN ORGANIC POLYSULFIDE WHICH COMPRISES REACTING A MERCAPTAN WITH A SULFUR IN THE PRESENCE OF A CATALYTIC AMOUNT OF LIME, HAVING PRESENT IN THE REACTION ZONE A FINELY DIVIDED METAL SELECTED FROM THE GROUP CONSISTING OF IRON, ALUMINUM, AND ZINC.
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) | 1965-06-04 | 1965-12-04 | 1966-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-04 | 1969-12-04 | 1970-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-04 | 1973-12-04 | 1974-06-05 | $7700.00 | Window Closed / Lapsed |