US4299920A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Biological receptacle
Assignee: Individual
•
Filing: 1980-01-14
•
Granted: 1981-11-10
•
Expires: 2000-01-14
Abstract
Abstract A receptacle for cell cultures or biological tests comprising a base plate, and a wall member joined in detachable and liquid-tight manner to the base plate, the base plate and wall defining at least one chamber, at least that portion of the wall adjacent the base plate consisting of a noncytotoxic elastomeric synthetic material adhering to the base plate.
Inventors
- 👤 J. Hinrich Peters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:49
CPC Classifications
C; C12; C12M; C12M23/00; C12M23/02; C12M23/12
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
75 words
A receptacle containing a test medium such as a cell culture or biological specimen consisting of a base plate and wall member, the wall member having a flat smooth bottom self-adhering to the base plate in liquid-tight manner, the wall member being formed of noncytotoxic hydrophobic elastomeric synthetic material compatible with the test medium and defining with the base plate a plurality of independent chambers, and a plurality of test media in the independent chambers.
Claim 2
Dependent Claim
75 words
A receptacle containing a test medium such as a cell culture or biological specimen consisting of a base plate and wall member, the wall member having a flat smooth bottom self-adhering to the base plate in liquid-tight manner, the wall member being formed of noncytotoxic hydrophobic elastomeric synthetic material compatible with the test medium and defining with the base plate a plurality of independent chambers, and a plurality of test media in the independent chambers.
Claim 3
Dependent Claim
14 words
A receptacle according to claim 1, wherein the synthetic material is a silicone rubber.
Claim 4
Dependent Claim
14 words
A receptacle according to claim 1, wherein the chamber tapers toward the base plate.
Claim 5
Dependent Claim
18 words
A receptacle according to claim 1, wherein the height of the chamber ranges from 0.1 to 20 mm.
Claim 6
Dependent Claim
19 words
A receptacle according to claim 1, wherein the base plate is made of a plastic material compatible with cells.
Claim 7
Dependent Claim
23 words
A receptacle according to claim 1, wherein the base plate includes pores permitting the passage therethrough of molecules, particles, cells, or cell projections.
Claim 8
Dependent Claim
14 words
A receptacle according to claim 1, including a loose-fitting cover, having an overlapping edge.
Claim 9
Dependent Claim
10 words
A receptacle according to claim 1, including an adhesive cover.
Claim 10
Dependent Claim
27 words
A receptacle according to claim 1, wherein the wall member has an adhesive surface which has a satin finish and/or is interrupted by groove- or cup-like depressions.
Claim 11
Dependent Claim
29 words
A receptacle according to claim 1, wherein test substances are applied to the base plate in a pattern corresponding to the grid of the chambers of the wall member.
Claim 12
Dependent Claim
24 words
A receptacle according to claim 1, in combination with a frame permitting the assembly of wall and base plate in alignment with one another.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-11-09 | 1985-05-11 | 1985-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-09 | 1989-05-11 | 1989-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-09 | 1993-05-11 | 1993-11-10 | $7700.00 | Window Closed / Lapsed |