US3766060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rinse water purification
Assignee: VAPONICS
•
Filing: 1972-07-12
•
Granted: 1973-10-16
•
Expires: 1992-07-12
Abstract
Abstract THE USE OF A 0.2-MICRON FILTER IS MADE POSSIBLE IN A RECIRCULATING WASH OR RINSE SYSTEM BY MAINTAINING THE SYSTEM UNDER BIOLOGICALLY STERILE CONDITIONS. STERILE CONDITIONS ARE BEST MAINTAINED BY ETHER EXPOSING THE LIQUID TO ULTRAVIOLET LIGHT OR BY KEEPING THE SYSTEM AT A CONSTANT HIGH TEMPERATURE.
Inventors
- 👤 V Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:54
CPC Classifications
A; A61; A61L; A61L2/00; A61L2/02; A61L2/08; A61L2/10; C; C02; C02F; C02F1/00; C02F1/30; C02F1/32
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |