US2931757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sterility testing means
Assignee: Abbott Laboratories
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Filing: 1956-06-25
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Granted: 1960-04-05
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Expires: 1976-06-25
Abstract
No abstract record available.
Inventors
- 👤 Edward J Rdzok
- 👤 Walton E Grundy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:18
CPC Classifications
A; A61; A61L; A61L2/00; A61L2/24; Y; Y10; Y10S; Y10S435/00; Y10S435/805; Y10S435/8215; Y10S435/822; Y10S435/832; Y10S435/834; Y10S435/839; Y10S435/842; Y10S435/911; Y10S435/913; Y10S435/917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
AN ARTICLE OF MANUFACUTRE FOR TESTING STERILITY COMPRISING AN INERT, SOLID, NONE-HYGROSCOPIC CARRIER MATERIAL IN THE FORM OF A THIN, WAFER-LIKE BODY, SAID WAFER-LIKE BODY BEING READILY DISINTEGRATED IN AN AQUEOUS MEDIUM AND UNIFORMLY DISPERSIBLE THERETHROUGH, AND AN ACCURATELY PREDETERMINED NUMBER OF MICROORGANISM SPORES BEING ADSORBED ON THE SAID WAFER-LIKE BODY AND BEING RETAINED THEREON IN A CULTURABLE FORM FOR A PERIOD OF AT LEAST SIX MONTHS.
Claim 2
Dependent Claim
67 words
AN ARTICLE OF MANUFACUTRE FOR TESTING STERILITY COMPRISING AN INERT, SOLID, NONE-HYGROSCOPIC CARRIER MATERIAL IN THE FORM OF A THIN, WAFER-LIKE BODY, SAID WAFER-LIKE BODY BEING READILY DISINTEGRATED IN AN AQUEOUS MEDIUM AND UNIFORMLY DISPERSIBLE THERETHROUGH, AND AN ACCURATELY PREDETERMINED NUMBER OF MICROORGANISM SPORES BEING ADSORBED ON THE SAID WAFER-LIKE BODY AND BEING RETAINED THEREON IN A CULTURABLE FORM FOR A PERIOD OF AT LEAST SIX MONTHS.
References Cited (Backward Citations)
US2485566A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-05 | 1963-10-05 | 1964-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-05 | 1967-10-05 | 1968-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-05 | 1971-10-05 | 1972-04-05 | $7700.00 | Window Closed / Lapsed |