US4632906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Biodesulfurization of carbonaceous materials
Assignee: Atlantic Richfield Co
•
Filing: 1984-11-29
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Granted: 1986-12-30
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Expires: 2004-11-29
Abstract
Abstract A process for reducing the sulfur content of a sulfur-containing carbonaceous material by contacting it in an aqueous medium with the organism Bacillus sulfasportare per ATCC number 39909.
Inventors
- 👤 Elva P. Kopacz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:44
CPC Classifications
C; C12; C12N; C12N1/00; C12N1/20; C12N1/205; C10; C10G; C10G32/00; C10L; C10L9/00; C12P; C12P3/00; C12R; C12R2001/00; C12R2001/01; C12R2001/07; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/832
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
34 words
A method for reducing the sulfur content of a sulfur-containing carbonaceous material comprising contacting a sulfur-containing carbonaceous material in an aqueous medium with a microorganism Bacillus sulfasportare per American Type Culture Collection number 39909.
Claim 2
Independent Claim
34 words
A method for reducing the sulfur content of a sulfur-containing carbonaceous material comprising contacting a sulfur-containing carbonaceous material in an aqueous medium with a microorganism Bacillus sulfasportare per American Type Culture Collection number 39909.
Claim 3
Dependent Claim
11 words
The method of claim 1 wherein said carbonaceous material is coal.
Claim 4
Dependent Claim
13 words
The method of claim 1 wherein said carbonaceous material is a hydrocarbon oil.
References Cited (Backward Citations)
US2521761A
Cited
US4562156A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-12-29 | 1990-06-30 | 1990-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-12-29 | 1994-06-30 | 1994-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-12-29 | 1998-06-30 | 1998-12-30 | $7700.00 | Window Closed / Lapsed |