Patent US3729460A successfully refreshed from Google Patents.
US3729460A
Expired / Lapsed
US
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Modified heteropolysaccharides
Assignee: Individual
•
Filing: 1970-03-02
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Granted: 1973-04-24
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Expires: 1990-03-02
Abstract
Abstract AN IMPROVED THICKENING AGENT IS PREPARED BY REACTING A HETEROPOLYSACCHARIDE PRODUCED BY BACTERIA OF THE GENUS XANTHOMONAS WITH AN ALKALINE COMPOUND IN AN AQUEOUS REACTION MEDIA AT ELEVATED TEMPERATURES.
Inventors
- 👤 J Patton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:01
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/60; C09K8/84; C09K8/86; C09K8/88; C09K8/90; C09K8/905; C08; C08B; C08B37/00; C08B37/0006; C08B37/0024; C08B37/0033
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) | 1976-04-23 | 1976-10-23 | 1977-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-23 | 1980-10-23 | 1981-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-23 | 1984-10-23 | 1985-04-24 | $7700.00 | Window Closed / Lapsed |