US2771399A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for determining biological potency of a substance in a liquid substrate
Assignee: Pharmacia and Upjohn Co
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Filing: 1954-10-12
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Granted: 1956-11-20
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Expires: 1974-10-12
Abstract
No abstract record available.
Inventors
- 👤 George M Savage
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:20
CPC Classifications
C; C12; C12M; C12M23/00; C12M23/02; C12M23/04; C12M23/38; C12M25/00; C12M25/14; C12Q; C12Q1/00; C12Q1/02; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/832; Y10S435/839; Y10S435/848; Y10S435/849; Y10S435/852; Y10S435/867; Y10S435/873; Y10S435/874; Y10S435/875; Y10S435/882; Y10S435/883
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
86 words
A PROCESS FOR DETERMINING TEH GROWTH-AFFECTING POTENCY OF A PLURALITY OF LIQUID MEDIA WITH RESPECT TO A SELECTED TEST ORGANISM COMPRISING THE STEPS: ARRANGING SAID LIQUID MEDIA IN A PLURALITY OF SEPARATE CONTAINERS, SIMULTANEOUSLY TRANSFERRING EQUAL QUANTITIES OF LIQUID MEDIA FROM SAID PLURALITY OF CONTAINERS TO A TRANSFER MEDIA AND THAN DEPOSITING SAME FROM SAID TRANSFER MEDIA IN A PREDETERMINED PATTERN ON A SOLID SUBSTRATE SEEDED WITH SAID TEST ORGANISM AND THEN SUBJECTING SAID SOLID SUBSTRATE TO CONDITIONS FAVORABLE TO THE GROWTH OF SAID TEST ORGANISM.
Claim 2
Dependent Claim
86 words
A PROCESS FOR DETERMINING TEH GROWTH-AFFECTING POTENCY OF A PLURALITY OF LIQUID MEDIA WITH RESPECT TO A SELECTED TEST ORGANISM COMPRISING THE STEPS: ARRANGING SAID LIQUID MEDIA IN A PLURALITY OF SEPARATE CONTAINERS, SIMULTANEOUSLY TRANSFERRING EQUAL QUANTITIES OF LIQUID MEDIA FROM SAID PLURALITY OF CONTAINERS TO A TRANSFER MEDIA AND THAN DEPOSITING SAME FROM SAID TRANSFER MEDIA IN A PREDETERMINED PATTERN ON A SOLID SUBSTRATE SEEDED WITH SAID TEST ORGANISM AND THEN SUBJECTING SAID SOLID SUBSTRATE TO CONDITIONS FAVORABLE TO THE GROWTH OF SAID TEST ORGANISM.
Claim 3
Dependent Claim
112 words
IN A DEVICE FOR INVERTING A PLURALITY OF LIQUID CARRYING CONTAINERS SIMULATANEOUSLY ONTO AND ABSORBENT SHEET, THE COMBINATION COMPRISING: A BASE MEMBER; A HORIZONTAL SHAFT EXTENDING FROM SAID BASE MEMBER; A BACKBOARD SUPPORTED ON SAID SHAFT AND ROTATABLY RELATED TO SAID BASE MEMBER; A BOTTOM PLATFORM EXTENDING FROM SAID BACKBOARD AT THE LOWER END THEREOF AND A PAIR OF UPRIGHT POSITIONING PINS EXTENDING UPWARDLY FROM EACH END RESPECTIVELY OF SAID BOTTOM PLATFORM; A TRAY FOR HOLDING SAID CONTAINERS ON SAID PLATFORM; A MEMBER EXTENDING FROM SAID BACKBOARD IN THE SAME DIRECTION AS SAID PLATFORM AND SPACED THEREFROM, A PRESSURE PLATE AND MEANS SUPPORTING SAID PRESSURE PLATE AT ADJUSTABLE DISTANCES FROM SAID PLATFORM.
Claim 4
Dependent Claim
112 words
IN A DEVICE FOR INVERTING A PLURALITY OF LIQUID CARRYING CONTAINERS SIMULATANEOUSLY ONTO AND ABSORBENT SHEET, THE COMBINATION COMPRISING: A BASE MEMBER; A HORIZONTAL SHAFT EXTENDING FROM SAID BASE MEMBER; A BACKBOARD SUPPORTED ON SAID SHAFT AND ROTATABLY RELATED TO SAID BASE MEMBER; A BOTTOM PLATFORM EXTENDING FROM SAID BACKBOARD AT THE LOWER END THEREOF AND A PAIR OF UPRIGHT POSITIONING PINS EXTENDING UPWARDLY FROM EACH END RESPECTIVELY OF SAID BOTTOM PLATFORM; A TRAY FOR HOLDING SAID CONTAINERS ON SAID PLATFORM; A MEMBER EXTENDING FROM SAID BACKBOARD IN THE SAME DIRECTION AS SAID PLATFORM AND SPACED THEREFROM, A PRESSURE PLATE AND MEANS SUPPORTING SAID PRESSURE PLATE AT ADJUSTABLE DISTANCES FROM SAID PLATFORM.
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) | 1959-11-20 | 1960-05-21 | 1960-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-20 | 1964-05-21 | 1964-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-20 | 1968-05-21 | 1968-11-20 | $7700.00 | Window Closed / Lapsed |