Patent US3144637A successfully refreshed from Google Patents.
US4332906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vessel for growing cells
Assignee: Pfizer Health AB
•
Filing: 1980-11-14
•
Granted: 1982-06-01
•
Expires: 2000-11-14
Abstract
Abstract A vessel for the growing of cells consists of an outer container provided with a lid which carries an inner container so as to form an annular growing vessel between the containers.
Inventors
- 👤 Robert L. Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:13
CPC Classifications
C; C12; C12M; C12M23/00; C12M23/34; C12M27/00; C12M29/00; C12M29/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
146 words
In apparatus for use with a commercial fermenter vessel of relatively large liquid capacity for the growing of cells in a relatively small volume of liquid culture fluid, said fermenter vessel being of the type wherein the upper margin of the side wall defines a top opening and a removeable closure lid is provided to close said opening, said closure lid including a plurality of downwardly depending detecting and monitoring means arranged adjacent the peripheral margin of the lid, the improvement which comprises an inner compartment secured to the under side of said lid to depend downwardly into said vessel, the outer wall of said container being spaced from the inner wall of said vessel to define an annular chamber for liquid culture fluid into which said detecting and monitoring means depend having a substantially lesser liquid capacity than that of the commercial fermenter vessel itself.
Claim 2
Dependent Claim
146 words
In apparatus for use with a commercial fermenter vessel of relatively large liquid capacity for the growing of cells in a relatively small volume of liquid culture fluid, said fermenter vessel being of the type wherein the upper margin of the side wall defines a top opening and a removeable closure lid is provided to close said opening, said closure lid including a plurality of downwardly depending detecting and monitoring means arranged adjacent the peripheral margin of the lid, the improvement which comprises an inner compartment secured to the under side of said lid to depend downwardly into said vessel, the outer wall of said container being spaced from the inner wall of said vessel to define an annular chamber for liquid culture fluid into which said detecting and monitoring means depend having a substantially lesser liquid capacity than that of the commercial fermenter vessel itself.
Claim 3
Dependent Claim
45 words
Apparatus as defined in claim 1, wherein the bottom wall of said container is spaced above the bottom wall of said vessel, whereby magnetic mixing means may be immersed in the body of liquid culture fluid confined between the walls of said container and vessel.
Claim 4
Dependent Claim
38 words
Apparatus as defined in either one of claims 1 or 2, wherein at least a portion of the wall of said container comprises a membrane through which low molecular compounds may pass into the interior of the container.
References Cited (Backward Citations)
US3660244A
Cited
US4166021A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-05-31 | 1985-11-30 | 1986-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-31 | 1989-11-30 | 1990-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-31 | 1993-11-30 | 1994-06-01 | $7700.00 | Window Closed / Lapsed |