Patent US4389374A successfully refreshed from Google Patents.
US4389374A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifuge tube holder
Assignee: BECKER INSTRUMENTS Inc
•
Filing: 1981-06-29
•
Granted: 1983-06-21
•
Expires: 2001-06-29
Abstract
Abstract A centrifuge tube holder capable of being manually assembled and disassembled without separate tooling to provide not only ease of cleaning, but also interchangeability of parts to accommodate various sized centrifuge tubes. The tube holder arrangement provides proper support with a minimum of parts to create a lighter weight assembly for use in a centrifuge rotor.
Inventors
- 👤 John H. Sutton
- 👤 Rebecca J. Woodruff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:48
CPC Classifications
B; B01; B01L; B01L9/00; B01L9/06; B04; B04B; B04B5/00; B04B5/04; B04B5/0407; B04B5/0414; B04B5/0421; B04B5/0442; B04B2005/0485
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
234 words
A centrifuge tube holder assembly comprising: a base having a specified perimeter; a top having a perimeter the same shape and size as said specified perimeter of said base; a pair of side panels detachably connected to said base and top to secure and maintain said top and bottom in a spaced apart relationship, each of said side panels having an upwardly extending handle-arm for holding or securing said assembly; a tongue section on opposite sides of said base and a loop on the bottom of each of said pair of side panels, said loops of said pair of side panels receiving said tongue sections of said base, said tongue sections being recessed within said base, said side panels being within said specified perimeter when attached to said base; at least two connecting pins on each of said pair of side panels and at least two holes on said top for receipt of said connecting pins for securing said top to said side panels, said top having slots to receive said side panels, said side panels being within said perimeter of said top when attached to said top, said tongue sections and said slots acting cooperatively with said side panels so that said specified perimeter is not enlarged by the attachment of said side panels to said base and said top; and means in said top and base for locating and positioning centrifuge tubes.
Claim 2
Dependent Claim
234 words
A centrifuge tube holder assembly comprising: a base having a specified perimeter; a top having a perimeter the same shape and size as said specified perimeter of said base; a pair of side panels detachably connected to said base and top to secure and maintain said top and bottom in a spaced apart relationship, each of said side panels having an upwardly extending handle-arm for holding or securing said assembly; a tongue section on opposite sides of said base and a loop on the bottom of each of said pair of side panels, said loops of said pair of side panels receiving said tongue sections of said base, said tongue sections being recessed within said base, said side panels being within said specified perimeter when attached to said base; at least two connecting pins on each of said pair of side panels and at least two holes on said top for receipt of said connecting pins for securing said top to said side panels, said top having slots to receive said side panels, said side panels being within said perimeter of said top when attached to said top, said tongue sections and said slots acting cooperatively with said side panels so that said specified perimeter is not enlarged by the attachment of said side panels to said base and said top; and means in said top and base for locating and positioning centrifuge tubes.
References Cited (Backward Citations)
US2110308A
Cited
US2755018A
Cited
US3454217A
Cited
US3554703A
Cited
US3674198A
Cited
US3682323A
Cited
US4135660A
Cited
US4198484A
Cited
US4284603A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-06-20 | 1986-12-20 | 1987-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-06-20 | 1990-12-20 | 1991-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-06-20 | 1994-12-20 | 1995-06-21 | $7700.00 | Window Closed / Lapsed |