US3279992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluoridation
Assignee: Monsanto Co
•
Filing: 1962-05-18
•
Granted: 1966-10-18
•
Expires: 1982-05-18
Abstract
No abstract record available.
Inventors
- 👤 Riyad R Irani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:33
CPC Classifications
C; C01; C01D; C01D3/00; C01D3/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A PROCESS WHICH COMPRISES BRINGING AN AQUEOUS SOLUTION CONTAINING DISSOLVED FLUORIDE IONS INTO INTIMATE PHYSICAL CONTACT WITH A HOT BED, AT LEAST A MAJOR PROPORTION OF SAID BED BEING A PARTICULATED FLOW-CONDITIONING AGENT, SAID BED BEING MAINTAINED DURING SAID CONTACT AT A TEMPERATURE SUFFICIENTLY GHIT TO CAUSE THE EVAPORATION FROM SAID BED OF THE AQUEOUS MOIETY OF SAID SOLUTION BEFORE SUBSTANTIALLY ALL OF SAID FLUORIDE IONS HAVE REACTED WITH SAID AGENT.
Claim 2
Dependent Claim
71 words
A PROCESS WHICH COMPRISES BRINGING AN AQUEOUS SOLUTION CONTAINING DISSOLVED FLUORIDE IONS INTO INTIMATE PHYSICAL CONTACT WITH A HOT BED, AT LEAST A MAJOR PROPORTION OF SAID BED BEING A PARTICULATED FLOW-CONDITIONING AGENT, SAID BED BEING MAINTAINED DURING SAID CONTACT AT A TEMPERATURE SUFFICIENTLY GHIT TO CAUSE THE EVAPORATION FROM SAID BED OF THE AQUEOUS MOIETY OF SAID SOLUTION BEFORE SUBSTANTIALLY ALL OF SAID FLUORIDE IONS HAVE REACTED WITH SAID AGENT.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |