Patent US2586914A successfully refreshed from Google Patents.
US2586914A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Colloidal sulfur
Assignee: Phillips Petroleum Co
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Filing: 1949-05-05
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Granted: 1952-02-26
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Expires: 1969-05-05
Abstract
No abstract record available.
Inventors
- 👤 Samuel C Carney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:02
CPC Classifications
C; C01; C01B; C01B17/00; C01B17/02; C01B17/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
A METHOD FOR THE PRODUCTION OF HYDROPHILIC COLLOIDAL SULFUR HAVING A HIGH STATIC CHARGE COMPRISING DISPERSING SULFUR IN MOLTEN PARA DICHLORBENZENE, CHILLING THE DISPERSION TO A TEMPERATURE BELOW ITS CONGEALING POINT, SUBLIMING THE PARA
Claim 2
Independent Claim
34 words
A METHOD FOR THE PRODUCTION OF HYDROPHILIC COLLOIDAL SULFUR HAVING A HIGH STATIC CHARGE COMPRISING DISPERSING SULFUR IN MOLTEN PARA DICHLORBENZENE, CHILLING THE DISPERSION TO A TEMPERATURE BELOW ITS CONGEALING POINT, SUBLIMING THE PARA
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) | 1955-02-25 | 1955-08-27 | 1956-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-25 | 1959-08-27 | 1960-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-25 | 1963-08-27 | 1964-02-26 | $7700.00 | Window Closed / Lapsed |