US4199550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for the uniform dosing of faecal matter for component detection
Assignee: Roche Diagnostics GmbH
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Filing: 1978-06-21
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Granted: 1980-04-22
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Expires: 1998-06-21
Abstract
Abstract A device for the uniform dosing of an amount of faeces onto reagent paper for the detection of a component material in the faeces. The device comprises test paper and a template disposed thereover having a given thickness and comprising at least one set of two superposed openings of any desired shape. Each set of openings includes a first opening and a second opening disposed between the first opening and the test paper and having a larger area than and encompassing the area of the first opening.
Inventors
- 👤 Hans Wielinger
- 👤 Walter Rittersdorf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:36
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/52; G01N33/525
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
93 words
A device for the uniform dosing of an amount of faeces onto reagent paper for the detection of a component material in the faeces, comprising a test paper for detecting a component material in faeces and a template disposed over one surface of the test paper and having a given thickness and comprising at least one set of two superposed openings, each set comprising a first opening and a second disposed between the first opening and the test paper and having a larger area than and encompassing the area of the first opening.
Claim 2
Independent Claim
93 words
A device for the uniform dosing of an amount of faeces onto reagent paper for the detection of a component material in the faeces, comprising a test paper for detecting a component material in faeces and a template disposed over one surface of the test paper and having a given thickness and comprising at least one set of two superposed openings, each set comprising a first opening and a second disposed between the first opening and the test paper and having a larger area than and encompassing the area of the first opening.
Claim 3
Dependent Claim
37 words
The device according to claim 1, wherein the template comprises a first layer having each first opening therein and a second layer having each second opening therein and disposed between the first layer and the test paper.
Claim 4
Dependent Claim
23 words
The device according to claim 2, wherein the layers each comprise cardboard with a surface weight of 200 to 400 g./m 2 .
Claim 5
Dependent Claim
13 words
The device according to claim 1, wherein the openings have a circular shape.
Claim 6
Dependent Claim
17 words
The device according to claim 1, wherein the openings have one of an oval or rectangular shape.
Claim 7
Dependent Claim
29 words
The device according to claim 2, further comprising a base sheet disposed on the other surface of the test paper and a cover member disposed over the first layer.
Claim 8
Dependent Claim
28 words
The device according to claim 6, wherein the base sheet has a removable portion aligned with each second opening to expose the other surface of the test paper.
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) | 1983-04-22 | 1983-10-22 | 1984-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-04-22 | 1987-10-22 | 1988-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-04-22 | 1991-10-22 | 1992-04-22 | $7700.00 | Window Closed / Lapsed |