US3097163A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of water in municipal and industrial water systems
Assignee: Individual
•
Filing: 1958-08-25
•
Granted: 1963-07-09
•
Expires: 1978-08-25
Abstract
No abstract record available.
Inventors
- 👤 Riddick Thomas Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:19
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/52; C02F1/5236
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
89 words
IN A WATER PURIFICATION PROCESS OF THE CHARACTER DESCRIBED FOR REMOVAL OF IMPURITIES FROM WATER BY PRECIPITATION IN A COAGULATED FLOCCULANT, THE STEPS WHICH COMPRISE ADMIXING FOR REACTION A FLOCCULATING AGENT FINELY DIVIDED CALCITE, SAID FLOCCULATING AGENT BEING SELECTED FROM THE GROUP CONSISTING OF ALUM AND FERRIC CHLORIDE FLOCCULANTS AND MIXTURES THEREOF, MAINTAINING SAID ADMIXED MATERIALS IN INTIMATE CONTACT WITH MECHANICAL AGITATION FOR A PREDETERMINED TIME FOR CHEMICAL REACTION THEREBETWEEN, ADDING THE REACTION PRODUCT OF SAID ADMIXED FLOCCULATING AGENT AND CALCITE TO SAID WATER TO BE PURIFIED, THE AMOUNT
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-08 | 1967-01-07 | 1967-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-08 | 1971-01-07 | 1971-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-08 | 1975-01-07 | 1975-07-09 | $7700.00 | Window Closed / Lapsed |