Patent US2971312A successfully refreshed from Google Patents.
US3847897A
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Microcrystalline chitin
Assignee: VAN CAMP MARINE Inc 4510 EXECUTIVE DRIVE SUITE 300 SAN DIEGO CA 92121 A CORP OF
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Filing: 1971-09-07
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Granted: 1974-11-12
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Expires: 1991-09-07
Abstract
Abstract 1. A COMPOSITION OF MATTER CONSISTING ESSENTIALLY OF: AN AQUEOUS, STABLE THIXOTROPIC DISPERSION OF MICROCRYSTALLINE CHITIN IN AN AMOUNT OF AT LEAST ABOUT 0.5% BY WEIGHT OF SAID DISPERSION, SAID DISPERSION HAVING A PH ABOVE 4.0.
Inventors
- 👤 H Dunn
- 👤 M Farr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:19
CPC Classifications
C; C08; C08B; C08B37/00; C08B37/0006; C08B37/0024; C08B37/0027; C08B37/003; A; A23; A23L; A23L29/00; A23L29/20; A23L29/275
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
A COMPOSITION OF MATTER CONSISTING ESSENTIALLY OF: AN AQUEOUS, STABLE THIXOTROPIC DISPERSION OF MICROCRYSTALLINE CHITIN IN AN AMOUNT OF AT LEAST ABOUT 0.5% BY WEIGHT OF SAID DISPERSION, SAID DISPERSION HAVING A PH ABOVE 4.0.
Claim 2
Dependent Claim
35 words
A COMPOSITION OF MATTER CONSISTING ESSENTIALLY OF: AN AQUEOUS, STABLE THIXOTROPIC DISPERSION OF MICROCRYSTALLINE CHITIN IN AN AMOUNT OF AT LEAST ABOUT 0.5% BY WEIGHT OF SAID DISPERSION, SAID DISPERSION HAVING A PH ABOVE 4.0.
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) | 1977-11-11 | 1978-05-13 | 1978-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-11 | 1982-05-13 | 1982-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-11 | 1986-05-13 | 1986-11-12 | $7700.00 | Window Closed / Lapsed |