US3281329A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fermentation process for producing a heteropolysaccharide
Assignee: ExxonMobil Upstream Research Co
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Filing: 1963-09-10
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Granted: 1966-10-25
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Expires: 1983-09-10
Abstract
No abstract record available.
Inventors
- 👤 Jr Benjamin J Lipps
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:49
CPC Classifications
C; C12; C12P; C12P19/00; C12P19/04; C12P19/06; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/91
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A PROCESS FOR THE PRODUCTION OF A HETEROPOLYSACCHARIDE WHICH COMPRISES THE STEPS OF CONTINUOUSLY FORMING A THIN FILM OF A STERILE MEDIUM HAVING A CARBOHYDRATE CONTENTS IN EXCESS OF ABOUT 1% BY WEIGHT AT SUCCESSIVE POINTS ON THE SURFACE OF A MOVING MEMBER, APPLYING A MEDIUM HAVING A CARBOHYDRATE CONTENTS LESS THAN ABOUT 0.5% BY WEIGHT AND CONTAINING BACTERIA OF THE GENUS XANTHAMONAS TO SAID FILM ON SAID MOVING MEMBER AT SUCCESIVE POINTS, SUPPLYING OXYGEN TO SAID BACTERIA ON SAID FILM AND MAINTAINING SAID FILM UNDER FERMENTATION CONDITIONS FOR A PERIOD SUFFICIENT FOR SAID BACTERIA TO FERMENT SAID CARBOHYDRATE THEREIN AS SAID MEMBER CONTINUES TO MOVE, AND CONTINUOUSLY REMOVING HETEROPOLYSACCHARIDE FROM THE SURFACE OF SAID MOVING MEMBER AT SUCCESSIVE POINTS.
Claim 2
Dependent Claim
120 words
A PROCESS FOR THE PRODUCTION OF A HETEROPOLYSACCHARIDE WHICH COMPRISES THE STEPS OF CONTINUOUSLY FORMING A THIN FILM OF A STERILE MEDIUM HAVING A CARBOHYDRATE CONTENTS IN EXCESS OF ABOUT 1% BY WEIGHT AT SUCCESSIVE POINTS ON THE SURFACE OF A MOVING MEMBER, APPLYING A MEDIUM HAVING A CARBOHYDRATE CONTENTS LESS THAN ABOUT 0.5% BY WEIGHT AND CONTAINING BACTERIA OF THE GENUS XANTHAMONAS TO SAID FILM ON SAID MOVING MEMBER AT SUCCESIVE POINTS, SUPPLYING OXYGEN TO SAID BACTERIA ON SAID FILM AND MAINTAINING SAID FILM UNDER FERMENTATION CONDITIONS FOR A PERIOD SUFFICIENT FOR SAID BACTERIA TO FERMENT SAID CARBOHYDRATE THEREIN AS SAID MEMBER CONTINUES TO MOVE, AND CONTINUOUSLY REMOVING HETEROPOLYSACCHARIDE FROM THE SURFACE OF SAID MOVING MEMBER AT SUCCESSIVE POINTS.
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) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |