Patent US3540983A successfully refreshed from Google Patents.
US3540983A
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Method for producing protein by growth of microorganisms on a water extract of coal
Assignee: United States Department of the Interior
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Filing: 1968-04-11
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Granted: 1970-11-17
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Expires: 1988-04-11
Abstract
No abstract record available.
Inventors
- 👤 Michael James Rose
- 👤 Jerry Michael Carosella
- 👤 John Douglas Corrick
- 👤 Joseph Augustine Sutton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:37
CPC Classifications
C; C12; C12N; C12N1/00; C12N1/14; C12N1/16; C12N1/20; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/874; Y10S435/875; Y10S435/911; Y10S435/921; Y10S435/923; Y10S435/93; Y10S435/944
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-16 | 1974-05-18 | 1974-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-16 | 1978-05-18 | 1978-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-16 | 1982-05-18 | 1982-11-17 | $7700.00 | Window Closed / Lapsed |