US3293145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stimulating microbial growth
Assignee: Mobil Oil AS
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Filing: 1964-08-26
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Granted: 1966-12-20
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Expires: 1984-08-26
Abstract
No abstract record available.
Inventors
- 👤 Richard I Leavitt
- 👤 Israel J Heilweil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:57
CPC Classifications
C; C12; C12P; C12P1/00; C10; C10G; C10G32/00; C12N; C12N1/00; C12N1/26; C12N1/38; C12P21/00; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/824; Y10S435/872
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
METHOD OF STIMULATING THE GROWTH OF A MICROORGANISM SELECTED FROM THE GROUP CONSISTING OF ACHROMOBACTER SOURCE OF CARBON FOR ENERGY AND GROWTH WHICH COMPRISES INCUBATING SAID MICROORGANISM IN AN AQUEOUS MINERAL SALT SOLUTION IN THE PRESENCE OF OXYGEN AND SAID HYDROCARBON TO FORM AN INCUBATION MIXTURE, SAID SOLUTION CONTAINING 0.015 TO 10% BY WEIGHT OF UREA AND 0.01 TO 10% BY WEIGHT OF A WATER SOLUBLE INORGANIC AMMONIUM SALT, SAID MIXTURE CONTAINING 0.001 TO 5% BY WEIGHT OF A NONIONIC SURFACE ACTIVE AGENT, THE JOINT USE OF SAID AGENT, UREA, AND AMMONIUM SALT HAVING A SYNERGISTIC EFFECT ON THE GROWTH RATE OF SAID MICROORGANISM AS DEMONSTRATED BY THE GROWTH RATE IS SUBSTANTIALLY GREATER THAN IF A LIKE INCUBATION MIXTURE WHERE USED BUT (1) WHICH OMITS SAID AGENT, OR (2) WHICH OMITS SAID UREA, OR (3) WHICH OMITS SAID AMMONIUM SALT, OR (4) WHICH OMITS SAID AGENT AND UREA, OR (5) WHICH OMITS SAID AGENTS AND AMMONIUM SALT.
Claim 2
Dependent Claim
157 words
METHOD OF STIMULATING THE GROWTH OF A MICROORGANISM SELECTED FROM THE GROUP CONSISTING OF ACHROMOBACTER SOURCE OF CARBON FOR ENERGY AND GROWTH WHICH COMPRISES INCUBATING SAID MICROORGANISM IN AN AQUEOUS MINERAL SALT SOLUTION IN THE PRESENCE OF OXYGEN AND SAID HYDROCARBON TO FORM AN INCUBATION MIXTURE, SAID SOLUTION CONTAINING 0.015 TO 10% BY WEIGHT OF UREA AND 0.01 TO 10% BY WEIGHT OF A WATER SOLUBLE INORGANIC AMMONIUM SALT, SAID MIXTURE CONTAINING 0.001 TO 5% BY WEIGHT OF A NONIONIC SURFACE ACTIVE AGENT, THE JOINT USE OF SAID AGENT, UREA, AND AMMONIUM SALT HAVING A SYNERGISTIC EFFECT ON THE GROWTH RATE OF SAID MICROORGANISM AS DEMONSTRATED BY THE GROWTH RATE IS SUBSTANTIALLY GREATER THAN IF A LIKE INCUBATION MIXTURE WHERE USED BUT (1) WHICH OMITS SAID AGENT, OR (2) WHICH OMITS SAID UREA, OR (3) WHICH OMITS SAID AMMONIUM SALT, OR (4) WHICH OMITS SAID AGENT AND UREA, OR (5) WHICH OMITS SAID AGENTS AND AMMONIUM SALT.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |