Patent US1151020A successfully refreshed from Google Patents.
US3764480A
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Measuring surface bacteria
Assignee: Armour Food Co
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Filing: 1971-08-25
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Granted: 1973-10-09
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Expires: 1991-08-25
Abstract
Abstract THE SURFACE OF A STERILIZED CULTURE MEDIUM CONTAINING 2,3,5 - TRIPHENYLTETRAZOLIUM CHLORIDE AND TITANIUM DIOXIDE IS PRESSED AGAINST A SURFACE TO BE INVESTIGATED TO PICK UP BACTERIAL PRESENT THEREON, THE MEDIUM IS THEN INCUBATED, AND THE REFLECTIVITY OF THE MEDIUM IS THEN MEASURED TO PROVIDE A SURFACE BACTERIAL COUNT.
Inventors
- 👤 J Heck
- 👤 G Jedlicka
- 👤 W Hill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:26
CPC Classifications
C; C12; C12Q; C12Q1/00; C12Q1/02; C12Q1/04; C12Q1/06; Y; Y10; Y10S; Y10S435/00; Y10S435/808
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-08 | 1977-04-09 | 1977-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-08 | 1981-04-09 | 1981-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-08 | 1985-04-09 | 1985-10-09 | $7700.00 | Window Closed / Lapsed |