Patent US2672431A successfully refreshed from Google Patents.
US2672431A
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Means for performing microbiological assays of aerosols and hydrosols
Assignee: Individual
•
Filing: 1949-11-25
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Granted: 1954-03-16
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Expires: 1969-11-25
Abstract
No abstract record available.
Inventors
- 👤 Goetz Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:47
CPC Classifications
C; C12; C12M; C12M25/00; C12M25/02; C12M23/00; C12M23/02; C12M23/10; C12M23/22; C12M23/24; C12M41/00; C12M41/30; C12M41/36; Y; Y10; Y10S; Y10S435/00; Y10S435/81
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A MICROBIOLOGICAL ASSAYING CELL, INVOLVING: A FOLDABLE AND SEALABLE POCKET MEMBER HAVING A TRANSPARENT WINDOW; A MICROFILTER HAVING A RAISED RIM; A NUTRIENT PAD ADAPTED TO BE HELD BY SAID POCKET MEMBER IN INTIMATE CONTACT WITH THE SIDE OF SAID FILLER OPPOSITE FROM SAID RIM, SAID RIM SPACING THE WINDOW OF SAID POCKET MEMBER FROM SAID MICROFILTER; SAID WINDOW PERMITTING OBSERVATION OF MICROORGANISM COLONIES ON SAID MICROFILTER.
Claim 2
Dependent Claim
67 words
A MICROBIOLOGICAL ASSAYING CELL, INVOLVING: A FOLDABLE AND SEALABLE POCKET MEMBER HAVING A TRANSPARENT WINDOW; A MICROFILTER HAVING A RAISED RIM; A NUTRIENT PAD ADAPTED TO BE HELD BY SAID POCKET MEMBER IN INTIMATE CONTACT WITH THE SIDE OF SAID FILLER OPPOSITE FROM SAID RIM, SAID RIM SPACING THE WINDOW OF SAID POCKET MEMBER FROM SAID MICROFILTER; SAID WINDOW PERMITTING OBSERVATION OF MICROORGANISM COLONIES ON SAID MICROFILTER.
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) | 1957-03-15 | 1957-09-14 | 1958-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-15 | 1961-09-14 | 1962-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-15 | 1965-09-14 | 1966-03-16 | $7700.00 | Window Closed / Lapsed |