US3172235A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for live cell propagation
Assignee: Individual
•
Filing: 1961-11-27
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Granted: 1965-03-09
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Expires: 1981-11-27
Abstract
No abstract record available.
Inventors
- 👤 Bjorklund Knut Bertil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:53
CPC Classifications
C; C12; C12M; C12M41/00; C12M41/30; C12M41/36; C12M41/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
198 words
A DEVICE FOR CONTINUOUSLY CULTIVATING LIVE CELLS OR CELL PRODUCTS, PARTICULARLY OF HUMAN OR ANIMAL ORIGIN THAT ARE ADVERSELY AFFECTED BY LIGHT, COMPRISING: (A) A CULTURE FLASK HAVING A CUPSHAPED BULGE, SAID BULGE HAVING TRANSPARENT CYLINDRICAL WALLS AND A TRANSPARENT END WALL, (B) A SUPPLY TANK FOR THE STORAGE OF A SUPPLY OF A CULTURE MEDIUM WHOLLY OR NEARLY DEVOID OF LIVE CELLS, (C) A SUPPLY CONDUIT FROM SAID SUPPLY TANK TO SAID CULTURE FLASK, (D) A VALVE IN SAID SUPPLY CONDUIT TO CONTROL THE FLOW THERETHROUGH, (E) A SUCTION CONDUIT LEADING FROM SAID CULTURE FLASK FOR REMOVING MEDIUM RICH IN CELLS, (F) A STIRRING DEVICE IN SAID CULTURE FLASK, (G) A CONTROL DEVICE FOR SAID VALVE INCLUDING: (1) A SOURCE OF LIGHT, (2) OPAQUE SHIELDING ARRANGED AROUND SAID SOURCE OF LIGHT SO THAT THE EMITTED LIGHT RAYS CAN ONLY PASS THROUGH THE TRANSPARENT CYLINDRICAL WALLS OF SAID BULGE AND ONLY INTO THE SMALL AMOUNT OF LIQUID MEDIUM THAT IS CONTAINED WITHIN SAID CUPSHAPED BULDGE, (3) A PHOTOCELL, (4) OPAQUE SHIELDING ARRANGED AROUND SAID PHOTOCELL SO THAT IT CAN ONLY RECEIVE ONLY LIGHT THAT HAS BEEN REFLECTED BY THE LIQUID MEDIUM THAT IS CONTAINED WITHIN SAID CUPSHAPED BULGE,
Claim 2
Independent Claim
198 words
A DEVICE FOR CONTINUOUSLY CULTIVATING LIVE CELLS OR CELL PRODUCTS, PARTICULARLY OF HUMAN OR ANIMAL ORIGIN THAT ARE ADVERSELY AFFECTED BY LIGHT, COMPRISING: (A) A CULTURE FLASK HAVING A CUPSHAPED BULGE, SAID BULGE HAVING TRANSPARENT CYLINDRICAL WALLS AND A TRANSPARENT END WALL, (B) A SUPPLY TANK FOR THE STORAGE OF A SUPPLY OF A CULTURE MEDIUM WHOLLY OR NEARLY DEVOID OF LIVE CELLS, (C) A SUPPLY CONDUIT FROM SAID SUPPLY TANK TO SAID CULTURE FLASK, (D) A VALVE IN SAID SUPPLY CONDUIT TO CONTROL THE FLOW THERETHROUGH, (E) A SUCTION CONDUIT LEADING FROM SAID CULTURE FLASK FOR REMOVING MEDIUM RICH IN CELLS, (F) A STIRRING DEVICE IN SAID CULTURE FLASK, (G) A CONTROL DEVICE FOR SAID VALVE INCLUDING: (1) A SOURCE OF LIGHT, (2) OPAQUE SHIELDING ARRANGED AROUND SAID SOURCE OF LIGHT SO THAT THE EMITTED LIGHT RAYS CAN ONLY PASS THROUGH THE TRANSPARENT CYLINDRICAL WALLS OF SAID BULGE AND ONLY INTO THE SMALL AMOUNT OF LIQUID MEDIUM THAT IS CONTAINED WITHIN SAID CUPSHAPED BULDGE, (3) A PHOTOCELL, (4) OPAQUE SHIELDING ARRANGED AROUND SAID PHOTOCELL SO THAT IT CAN ONLY RECEIVE ONLY LIGHT THAT HAS BEEN REFLECTED BY THE LIQUID MEDIUM THAT IS CONTAINED WITHIN SAID CUPSHAPED BULGE,
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) | 1968-03-08 | 1968-09-07 | 1969-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-08 | 1972-09-07 | 1973-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-08 | 1976-09-07 | 1977-03-09 | $7700.00 | Window Closed / Lapsed |