US3494723A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for controlling microorganisms and enzymes
Assignee: ETC Ltd A FL LP
•
Filing: 1967-12-05
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Granted: 1970-02-10
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Expires: 1987-12-05
Abstract
No abstract record available.
Inventors
- 👤 Oscar S Gray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:05
CPC Classifications
A; A61; A61L; A61L2/00; A61L2/02; A61L2/08; A61L2/12; A23; A23B; A23B2/00; A23B2/05; A23B2/08; Y; Y10; Y10S; Y10S435/00; Y10S435/80
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2576862A
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US2585970A
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US3166663A
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US3092503A
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US3215539A
Cited
GB947280A
Cited
US3365562A
Cited
US3271169A
Cited
US3272636A
Cited
US3409447A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-09 | 1973-08-11 | 1974-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-09 | 1977-08-11 | 1978-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-09 | 1981-08-11 | 1982-02-10 | $7700.00 | Window Closed / Lapsed |