US4912048A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluted culture vessel
Assignee: Becton Dickinson and Co
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Filing: 1987-12-21
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Granted: 1990-03-27
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Expires: 2007-12-21
Abstract
Abstract A culture vessel for improving culture or cell yield of anchored cell or suspension cultures has a fluted body wall to provide the vessel with internal ribbing. The internal ribbing of the vessel increases the surface area available for anchorage-competent cell growth and also enhances the agitation of cells in suspension culture to disperse the cells and promote growth.
Inventors
- 👤 Jerry W. Smith
- 👤 Deborah R. Siena
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:33
CPC Classifications
C; C12; C12M; C12M23/00; C12M23/02; C12M23/08; C12M25/00; C12M25/06; C12M27/00; C12M27/18; C12M27/20
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
127 words
An improved culture vessel for increasing culture or cell yield comprising: a base portion, a top portion remote from said base portion, and a body portion unitary with said base and top portions, said portions defining an interior growth chamber adapted for the culture of cells, said top portion further including a neck portion defining an opening into said growth chamber, and said body portion further including a body wall with interior and exterior surfaces, said vessel further comprising a plurality of longitudinal rows of ribbing extending into said growth chamber from and unitary with said interior surface of said body wall, said rows extending along a substantial portion of said body wall, wherein said vessel is comprised of material which is biologically-compatible with cells in culture.
Claim 2
Dependent Claim
127 words
An improved culture vessel for increasing culture or cell yield comprising: a base portion, a top portion remote from said base portion, and a body portion unitary with said base and top portions, said portions defining an interior growth chamber adapted for the culture of cells, said top portion further including a neck portion defining an opening into said growth chamber, and said body portion further including a body wall with interior and exterior surfaces, said vessel further comprising a plurality of longitudinal rows of ribbing extending into said growth chamber from and unitary with said interior surface of said body wall, said rows extending along a substantial portion of said body wall, wherein said vessel is comprised of material which is biologically-compatible with cells in culture.
Claim 3
Dependent Claim
23 words
The vessel of claim 1, wherein said interior surface of said body wall is adapted for the culture of anchorage-competent cells directly thereon.
Claim 4
Dependent Claim
24 words
The vessel of claim 1, wherein each of a majority of said plurality of said longitudinal rows of said ribbing comprises a contiguous rib.
Claim 5
Dependent Claim
17 words
The vessel of claim 3, further comprising a collar encircling the outer circumference of said body portion.
Claim 6
Dependent Claim
17 words
The vessel of claim 3, wherein a majority of said contiguous ribs are substantially V-shaped in configuration.
Claim 7
Dependent Claim
20 words
The vessel of claim 3, wherein said outer surface of said body wall includes at least one external grip rib.
Claim 8
Dependent Claim
16 words
The vessel of claim 3, wherein said ribbing further includes connecting ribs connecting adjacent contiguous ribs.
Claim 9
Dependent Claim
26 words
The vessel of claim 4, wherein said collar is removable from said outer surface of said body wall and said collar is comprised of pliant material.
Claim 10
Dependent Claim
24 words
The vessel of claim 8, wherein each of a majority of said plurality of said longitudinal rows of said ribbing comprises a contiguous rib.
Claim 11
Dependent Claim
24 words
The vessel of claim 8, wherein a majority of said plurality of said longitudinal rows of said ribbing comprises a series of discrete ribs.
Claim 12
Dependent Claim
26 words
The vessel of claim 1, wherein each of a majority of said plurality of said longitudinal rows of said ribbing comprises a series of discrete ribs.
Claim 13
Dependent Claim
37 words
The vessel of claim 11, wherein said discrete ribs within at least one of said longitudinal rows of said ribbing are in staggered arrangement with respect to the discrete ribs of an adjacent row of said ribbing.
Claim 14
Dependent Claim
23 words
The vessel of claim 1, wherein said vessel is comprised of a moldable transparent polymeric resin which is biologically-compatible with cells in culture.
Claim 15
Dependent Claim
12 words
The vessel of claim 13, wherein said discrete ribs are generally V-shaped.
Claim 16
Dependent Claim
14 words
The vessel of claim 13, wherein said discrete ribs are generally quadrangular in shape.
Claim 17
Dependent Claim
12 words
The vessel of claim 13, wherein said discrete ribs are generally crescent-shaped.
Claim 18
Dependent Claim
13 words
The vessel of claim 1, wherein said vessel is comprised of polyethylene terephthalate.
Claim 19
Dependent Claim
19 words
The vessel of claim 1, further comprising closure means for said neck portion for providing a closed culture system.
Claim 20
Dependent Claim
97 words
A fluted culture vessel comprising: a base and body portion integral therewith defining an interior growth chamber adapted for cell culture and having an opening to said growth chamber, said body portion having a body wall having an inner and outer surface, said wall having fluting molded therein, wherein said fluting defines ribbing on said inner surface of said body wall, said ribbing further comprising a plurality of rows of ribbing, said rows extending longitudinally along a substantial portion of said body wall, wherein said vessel is comprised of material which is biologically-compatible with cells in culture.
Claim 21
Dependent Claim
97 words
A fluted culture vessel comprising: a base and body portion integral therewith defining an interior growth chamber adapted for cell culture and having an opening to said growth chamber, said body portion having a body wall having an inner and outer surface, said wall having fluting molded therein, wherein said fluting defines ribbing on said inner surface of said body wall, said ribbing further comprising a plurality of rows of ribbing, said rows extending longitudinally along a substantial portion of said body wall, wherein said vessel is comprised of material which is biologically-compatible with cells in culture.
Claim 22
Dependent Claim
115 words
A culture system comprising: a vessel having a base portion, top portion remote from said base portion, and a body portion integral with said base and top portions, said portions defining an interior growth chamber adapted for the culture of cells, said top portion further including a neck portion defining an opening into said growth chamber, and said body portion comprising a body wall with interior and exterior surfaces, said interior surface of said wall having a plurality of longitudinal rows of ribbing extending therefrom, said rows of said ribbing extending along a substantial portion of said body wall, cells located within said vessel, and biologically-compatible medium in contact with said cells within said vessel.
Claim 23
Dependent Claim
115 words
A culture system comprising: a vessel having a base portion, top portion remote from said base portion, and a body portion integral with said base and top portions, said portions defining an interior growth chamber adapted for the culture of cells, said top portion further including a neck portion defining an opening into said growth chamber, and said body portion comprising a body wall with interior and exterior surfaces, said interior surface of said wall having a plurality of longitudinal rows of ribbing extending therefrom, said rows of said ribbing extending along a substantial portion of said body wall, cells located within said vessel, and biologically-compatible medium in contact with said cells within said vessel.
Claim 24
Independent Claim
129 words
A method for increasing culture or cell yield comprising: providing a culture vessel comprising a base portion, a top portion remote from said base portion, and a body portion unitary with said base and top portions, said portions defining an interior growth chamber adapted for the cutlure of cells, said top portion further including a portion defining an opening into said growth chamber, and said body portion further including a body wall with interior and exterior surfaces, said vessel further comprising a plurality of longitudinal rows of ribbing extending into said growth chamber from said interior surface of said body wall, said rows extending along a substantial portion of said body wall; providing cell culture medium within said vessel; and inoculating said vessel with cells to be cultured therein.
Claim 25
Independent Claim
129 words
A method for increasing culture or cell yield comprising: providing a culture vessel comprising a base portion, a top portion remote from said base portion, and a body portion unitary with said base and top portions, said portions defining an interior growth chamber adapted for the cutlure of cells, said top portion further including a portion defining an opening into said growth chamber, and said body portion further including a body wall with interior and exterior surfaces, said vessel further comprising a plurality of longitudinal rows of ribbing extending into said growth chamber from said interior surface of said body wall, said rows extending along a substantial portion of said body wall; providing cell culture medium within said vessel; and inoculating said vessel with cells to be cultured therein.
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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) | 1993-03-26 | 1993-09-25 | 1994-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-26 | 1997-09-25 | 1998-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-26 | 2001-09-25 | 2002-03-27 | $7700.00 | Window Closed / Lapsed |