Patent US3346464A successfully refreshed from Google Patents.
US3346464A
Expired / Lapsed
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Biological sterility indicator and method for making and using same
Assignee: Sybron Transition Corp
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Filing: 1965-10-23
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Granted: 1967-10-10
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Expires: 1985-10-23
Abstract
No abstract record available.
Inventors
- 👤 Robert R Ernst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:32
CPC Classifications
C; C12; C12Q; C12Q1/00; C12Q1/02; C12Q1/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A DRY STERILITY INDICATOR FOR SUBMERGING IN WATER AFTER STERILIZATION COMPRISING: (A) A SEMI-PERMEABLE ENVELOPE, BEING PERMEABLE TO SELECTED STERLIZING MEDIA AND TO WATER AND TO A SELECTED SUITABLE GROWTH MEDIA BUT IMPERMEABLE TO A SELECTED SUITABLE TEST ORGANISM AND BACTERIA IN GAS AND IN WATER; AND
Claim 2
Dependent Claim
47 words
A DRY STERILITY INDICATOR FOR SUBMERGING IN WATER AFTER STERILIZATION COMPRISING: (A) A SEMI-PERMEABLE ENVELOPE, BEING PERMEABLE TO SELECTED STERLIZING MEDIA AND TO WATER AND TO A SELECTED SUITABLE GROWTH MEDIA BUT IMPERMEABLE TO A SELECTED SUITABLE TEST ORGANISM AND BACTERIA IN GAS AND IN WATER; AND
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-09 | 1971-04-10 | 1971-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-09 | 1975-04-10 | 1975-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-09 | 1979-04-10 | 1979-10-10 | $7700.00 | Window Closed / Lapsed |