US3752748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ozone generating apparatus and method
Assignee: MCMILLAN ELECTRONICS CORP
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Filing: 1971-04-19
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Granted: 1973-08-14
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Expires: 1991-04-19
Abstract
Abstract AN OZONE GENERATING APPARATUS AND METHOD PROVIDING SUBSTANTIALLY CONSTANT, CONTROLLED CONCENTRATIONS OF OZONIZED GAS FOR REPEATED OPERATING CYCLES OR FOR SUSTAINED LENGTHS OF OPERATING TIME AND CAPABLE OF BEING QUICKLY AND ACCURATELY CALIBRATED TO INSURE ACCURACY OF THE OZONE CONCENTRATIONS GENERATED.
Inventors
- 👤 R Mcmillan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:09
CPC Classifications
G; G01; G01N; G01N17/00; G01N33/00; G01N33/0004; G01N33/0006
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) | 1976-08-13 | 1977-02-12 | 1977-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-13 | 1981-02-12 | 1981-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-13 | 1985-02-12 | 1985-08-14 | $7700.00 | Window Closed / Lapsed |