Patent US2345112A successfully refreshed from Google Patents.
Patent US4228243A successfully refreshed from Google Patents.
US4228243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cell culture propagation apparatus
Assignee: Toray Industries Inc
•
Filing: 1978-07-13
•
Granted: 1980-10-14
•
Expires: 1998-07-13
Abstract
Abstract Apparatus and method for propagating tissue culture cells. A plurality of spaced-apart, parallel flat plates are assembled. The cells are grown between the plates. Gases or liquid media may be introduced between the plates.
Inventors
- 👤 Masahiko Iizuka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:27
CPC Classifications
C; C12; C12M; C12M25/00; C12M25/06; C12M23/00; C12M23/34; C12M23/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
Apparatus for propagating tissue culture cells in a static culture system comprising: a vessel reservoir for liquid culture medium, said vessel having four vertical walls at opposite ends of a first horizontal dimension thereof, a plurality of substantially parallel spaced apart plates disposed within said vessel for providing surfaces to which cell growth can attach and liquid and gas phases can exist, said plates being enclosed and in sealing relationship with said vertical walls along three walls to form individual dishes, the portion of the plates along the wall not in sealing relationship with the wall being raised so that when the apparatus is positioned with said plates in a horizontal position all raised portions stand in a substantially vertical position and the liquid culture medium is maintained on said individual dishes, whereby said apparatus has at least one inter-dish passage, and at least one inlet and outlet means on said apparatus for passage of medium and gas.
Claim 2
Dependent Claim
158 words
Apparatus for propagating tissue culture cells in a static culture system comprising: a vessel reservoir for liquid culture medium, said vessel having four vertical walls at opposite ends of a first horizontal dimension thereof, a plurality of substantially parallel spaced apart plates disposed within said vessel for providing surfaces to which cell growth can attach and liquid and gas phases can exist, said plates being enclosed and in sealing relationship with said vertical walls along three walls to form individual dishes, the portion of the plates along the wall not in sealing relationship with the wall being raised so that when the apparatus is positioned with said plates in a horizontal position all raised portions stand in a substantially vertical position and the liquid culture medium is maintained on said individual dishes, whereby said apparatus has at least one inter-dish passage, and at least one inlet and outlet means on said apparatus for passage of medium and gas.
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) | 1983-10-14 | 1984-04-14 | 1984-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-14 | 1988-04-14 | 1988-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-14 | 1992-04-14 | 1992-10-14 | $7700.00 | Window Closed / Lapsed |