Patent US4921334A successfully refreshed from Google Patents.
Patent US4938369A successfully refreshed from Google Patents.
US4938369A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple-option test tube support system
Assignee: USA/SCIENTIFIC PLASTICS Inc
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Filing: 1989-06-22
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Granted: 1990-07-03
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Expires: 2009-06-22
Abstract
Abstract A test tube support system wherein support holes of varying sizes are available for simultaneous upright storage of various different sizes of test tubes.
Inventors
- 👤 Brian D. Carilli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:30
CPC Classifications
B; B01; B01L; B01L9/00; B01L9/06
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
81 words
A test tube support system, comprising: a plurality of rectangular box-shaped units each having six faces, a multiplicity of said faces in each said unit having a plurality of holes of various diameters, each said hole having sufficient depth to prevent tipping of test-tubes stored vertically therein; and support means for holding said plurality of units, wherein each of said units may be differently oriented so that test tubes of various sizes may be stored in said test tube support system.
Claim 2
Dependent Claim
81 words
A test tube support system, comprising: a plurality of rectangular box-shaped units each having six faces, a multiplicity of said faces in each said unit having a plurality of holes of various diameters, each said hole having sufficient depth to prevent tipping of test-tubes stored vertically therein; and support means for holding said plurality of units, wherein each of said units may be differently oriented so that test tubes of various sizes may be stored in said test tube support system.
Claim 3
Dependent Claim
21 words
The test tube support system of claim 1, wherein each of said multiplicity of faces has holes of a different diameter.
Claim 4
Dependent Claim
71 words
A test tube support system, comprising: a plurality of rectangular box-shaped units each having six faces, a multiplicity of said faces in each said unit having a plurality of holes of various diameters, each said hole having sufficient depth to prevent tipping of test-tubes stored vertically therein; wherein said plurality of units are attached along a common central axis so that each unit may be separately rotated about said central axis.
Claim 5
Dependent Claim
71 words
A test tube support system, comprising: a plurality of rectangular box-shaped units each having six faces, a multiplicity of said faces in each said unit having a plurality of holes of various diameters, each said hole having sufficient depth to prevent tipping of test-tubes stored vertically therein; wherein said plurality of units are attached along a common central axis so that each unit may be separately rotated about said central axis.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-07-02 | 1994-01-01 | 1994-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-07-02 | 1998-01-01 | 1998-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-07-02 | 2002-01-01 | 2002-07-03 | $7700.00 | Window Closed / Lapsed |