Patent US6221005B1 successfully refreshed from Google Patents.
US3734079A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for blood tests
Assignee: Individual
•
Filing: 1971-04-05
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Granted: 1973-05-22
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Expires: 1991-04-05
Abstract
Abstract Erythrocyte sedimentation rate measuring apparatus in the form of a hypodermic syringe, the cylinder of which is made to conform to the specification of a Wintrobe sedimentation rate tube, the syringe being preferably of a disposable nature and having a valve means including an agitator ball and anti-coagulant in the interior thereof.
Inventors
- 👤 M Weber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:29
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/15; A61B5/150007; A61B5/150015; A61B5/15003; A61B5/150206; A61B5/150221; A61B5/150236; A61B5/150244; A61B5/150267; A61B5/150351; A61B5/150374; A61B5/150381; A61B5/150389; A61B5/150503; A61B5/150519; A61B5/150755; A61B5/150763; A61B5/150786; A61B5/153; A61B5/150251; A61B5/150259; A61B5/150343
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
17 words
Apparatus as claimed in claim 1 comprising an anti-coagulant in the interior of the tubular cyindrical body.
Claim 2
Dependent Claim
19 words
Apparatus as claimed in claim 2 in which said valve means comprises an agitator ball in the syringe member.
Claim 3
Dependent Claim
64 words
Apparatus as claimed in claim 3 in which said base has a shaped valve seat and the ball is dimensioned to seat on the valve seat of the base to cover said bore therein, the plunger shaft being of a length such that the plunger applies the ball in a seated condition on the valve seat when the plunger is in its advanced position.
Claim 4
Dependent Claim
43 words
Apparatus as claimed in claim 1 in which the plunger and plunger shaft are provided with a bore therethrough and means at the outer end of the bore for drawing a quantity of fluid from the syringe member into the latter said bore.
Claim 5
Dependent Claim
52 words
Apparatus as claimed in claim 5 in which said means for drawing fluid from the syringe member into the bore comprises a rod extending through the bore in the plunger and shaft and a screw threaded device coupled to said rod for withdrawing the rod from the bore to a limited extent.
Claim 6
Dependent Claim
47 words
Apparatus as claimed in claim 5 in which said means for drawing fluid from the syringe member into the bore comprises a screw thread cap secured to said rod, and a complementary threaded spigot on said shaft, the cap being in threaded, sealing engagement with said spigot.
Claim 7
Dependent Claim
25 words
Apparatus as claimed in claim 1 comprising a cover for the hypodermic needle, said cover being a container which is removably attached to said base.
Claim 8
Dependent Claim
25 words
Apparatus as claimed in claim 8 comprising a formation on said cover, and a closure member for the container detachably supported by the said formation.
Claim 9
Dependent Claim
22 words
Apparatus as claimed in claim 1 in which the tubular cylindrical body, and base, are made of plastic material and are disposable.
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) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |