Patent US4976923A successfully refreshed from Google Patents.
US4976923A
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Assignee: RHODE ISLAND HOSPITAL A CORP OF RI
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Filing: 1989-05-12
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Granted: 1990-12-11
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Expires: 2009-05-12
Abstract
Abstract A fluid testing apparatus including a specimen cup and a cover having a reagent portion which is color sensitive to an analytical characteristic.
Inventors
- 👤 Milton H. Lipsky
- 👤 Andrew Rosner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:25
CPC Classifications
B; B01; B01L; B01L3/00; B01L3/50; B01L3/508; G; G01; G01N; G01N21/00; G01N21/75; G01N21/77; G01N21/78; G01N2021/752; G01N21/17; G01N21/25; G01N21/29; G01N21/293; Y; Y10; Y10S; Y10S436/00; Y10S436/807; Y10S436/81
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
143 words
A fluid testing apparatus comprising: a specimen cup for receiving a fluid specimen therein, a cover assembly which is receivable and securable in covering relation on said specimen cup so that it cooperates therewith to define an enclosed area, said cover assembly further including an isolation chamber formed therein for containing a reagent portion, said isolation chamber depending from said cover assembly so that said isolation chamber is located in said enclosed area when said cover assembly is received on said specimen cup, said isolation chamber including a peripheral sidewall portion having a plurality of preformed apertures therein which open into an interior isolation area, and said reagent portion being disposed in said interior isolation area and being color sensitive to a predetermined analytical characteristic for testing said fluid specimen once the latter has passed through said apertures into said interior isolation area.
Claim 2
Dependent Claim
143 words
A fluid testing apparatus comprising: a specimen cup for receiving a fluid specimen therein, a cover assembly which is receivable and securable in covering relation on said specimen cup so that it cooperates therewith to define an enclosed area, said cover assembly further including an isolation chamber formed therein for containing a reagent portion, said isolation chamber depending from said cover assembly so that said isolation chamber is located in said enclosed area when said cover assembly is received on said specimen cup, said isolation chamber including a peripheral sidewall portion having a plurality of preformed apertures therein which open into an interior isolation area, and said reagent portion being disposed in said interior isolation area and being color sensitive to a predetermined analytical characteristic for testing said fluid specimen once the latter has passed through said apertures into said interior isolation area.
Claim 3
Dependent Claim
28 words
The fluid testing apparatus of claim 1 wherein said cover assembly includes a plurality of reagent portions, said reagent portions being sensitive to a plurality of analytical characteristics.
Claim 4
Dependent Claim
19 words
The apparatus of claim 1 wherein said reagent portion is visible without exposing an operator to said test fluid.
References Cited (Backward Citations)
DE225337C
Cited
US1125078A
Cited
US2027816A
Cited
US2370683A
Cited
US3815769A
Cited
US3774455A
Cited
US3786510A
Cited
DE2401892A1
Cited
US3918433A
Cited
US4046138A
Cited
DE2729283A1
Cited
US4473530A
Cited
JPS60238763A
Cited
US4591062A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-12-10 | 1994-06-11 | 1994-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-12-10 | 1998-06-11 | 1998-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-12-10 | 2002-06-11 | 2002-12-11 | $7700.00 | Window Closed / Lapsed |