Patent US4303616A successfully refreshed from Google Patents.
US4303616A
Expired / Lapsed
US
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Agglutination analyzing vessel
Assignee: Olympus Corp
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Filing: 1980-06-12
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Granted: 1981-12-01
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Expires: 2000-06-12
Abstract
Abstract An agglutination analyzing vessel which is provided on at least one portion of a base surface thereof with an inclined surface which is provided on at least one portion thereof with a plurality of engravings regularly arranged and forming a stable state of settling down particles on the inclined base surface.
Inventors
- 👤 Tokio Kano
- 👤 Akira Tamagawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:25
CPC Classifications
B; B01; B01L; B01L3/00; B01L3/50; B01L3/508; G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/53; G01N33/5302; G01N33/5304
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
103 words
In a particle agglutination analyzing vessel having a base surface wherein particles can settle down along said base surface so as to form agglutination patterns on the base surface of the vessel to thereby effect an immunological analysis, wherein the improvement comprises said base surface is provided on at least one portion thereof with an inclined surface which is provided on at least one portion thereof with a plurality of regularly arranged engravings, said engravings being of such a depth and length to permit the formation of a clear and precise agglutination pattern of said settling down particles on said inclined base surface.
Claim 2
Dependent Claim
103 words
In a particle agglutination analyzing vessel having a base surface wherein particles can settle down along said base surface so as to form agglutination patterns on the base surface of the vessel to thereby effect an immunological analysis, wherein the improvement comprises said base surface is provided on at least one portion thereof with an inclined surface which is provided on at least one portion thereof with a plurality of regularly arranged engravings, said engravings being of such a depth and length to permit the formation of a clear and precise agglutination pattern of said settling down particles on said inclined base surface.
Claim 3
Dependent Claim
62 words
The particle agglutination analyzing vessel according to claim 1, wherein said plurality of engravings are led from the lowest point of an inverted conically inclined base surface of the vessel along the inclined base surface to the top periphery and regularly and concentrically arranged about the lowest point as its center along a substantially overall inclined base surface region of the vessel.
Claim 4
Dependent Claim
43 words
The particle agglutination analyzing vessel according to claim 1, wherein said plurality of engravings are intermittently and concentrically arranged about the lowest point of the conically inclined base surface of the vessel as its center, said engravings being aligned in the inclined direction.
Claim 5
Dependent Claim
45 words
The particle agglutination analyzing vessel according to claim 1, wherein said plurality of engravings are intermittently and concentrically arranged about the lowest point of the conically inclined base surface of the vessel as its center, said engravings being arranged in zigzag in the inclined direction.
Claim 6
Dependent Claim
17 words
The particle agglutination analyzing vessel according to claim 1, wherein said plurality of engravings are spirally arranged.
Claim 7
Dependent Claim
42 words
The particle agglutination analyzing vessel according to claim 1, wherein said plurality of engravings are composed of a plurality of depressions each having a depth of 2 to 50 μm and a length in the inclined direction of 5 to 200 μm.
Claim 8
Dependent Claim
48 words
The particle agglutination analyzing vessel according to claim 1, wherein said plurality of engravings are formed by a plurality of protrusions each having a height of 2 to 50 μm and spaced apart from each other in the inclined direction by a distance of 5 to 200 μm.
Claim 9
Dependent Claim
83 words
The particle agglutination analyzing vessel according to claim 6, wherein said plurality of depressions are of sawteeth shaped ones, each sawtooth being inclined at an angle θ which is 0° to 90° with respect to the center axis of the vessel so as to form a sawtooth having a sharp upper edge, and the maximum depth being gradually decreased from the top periphery of the inverted conical base surface of the vessel to the lowest point where the maximum depth is the smallest.
Claim 10
Dependent Claim
83 words
The particle agglutination analyzing vessel according to claim 5, wherein said plurality of depressions are of sawteeth shaped ones, each sawtooth being inclined at an angle θ which is 0° to 90° with respect to the center axis of the vessel so as to form a sawtooth having a sharp upper edge, and the maximum depth being gradually decreased from the top periphery of the inverted conical base surface of the vessel to the lowest point where the maximum depth is the smallest.
Claim 11
Dependent Claim
30 words
The particle agglutination analyzing vessel according to claim 2, wherein said lowest point of an inverted conically inclined base surface of the vessel is deformed into a lowest flat region.
Claim 12
Dependent Claim
28 words
The particle agglutination analyzing vessel according to claim 1, wherein said plurality of engravings are composed of a plurality of grooves each of which is V-shaped in section.
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) | 1984-11-30 | 1985-06-01 | 1985-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-30 | 1989-06-01 | 1989-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-30 | 1993-06-01 | 1993-12-01 | $7700.00 | Window Closed / Lapsed |