US3352950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical potential method for dispersion of metal oxide microspheres
Assignee: Individual
•
Filing: 1966-12-21
•
Granted: 1967-11-14
•
Expires: 1986-12-21
Abstract
No abstract record available.
Inventors
- 👤 Dennis M Helton
- 👤 Raymond G Wymer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:23
CPC Classifications
B; B01; B01J; B01J2/00; B01J2/02; B01J2/06; B01J2/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A METHOD OF FORMING GEL MICROSPHERES BY INTRODUCING A STREAM OF AN AQUEOUS SOL SELECTED FROM THE GROUP CONSISTING OF THORIA, URANIA, PLUTONIA, AND ZIRCONIA INTO A DRYING LIQUID, THE IMPROVEMENT COMRISING ESTABLISHING AN ELECTRECAL FIELD WITH AN APPLIED VOLTAGE IN THE RANGE OF 500 TO 2000 VOLTS AND PASSING A THIN STREAM OF SAID SOL AT A FLOW RATE OF BETWEEN 0.2-1.2 MILLILITERS PER MINUTE THROUGH SAID ELECTRICAL FIELD AS IT IS INTRODUCED INTO SAID DRYING LIQUID THEREBY FORMING SOL DROPLETS OF A SIZE FROM 50-500 MICRONS.
Claim 2
Independent Claim
88 words
A METHOD OF FORMING GEL MICROSPHERES BY INTRODUCING A STREAM OF AN AQUEOUS SOL SELECTED FROM THE GROUP CONSISTING OF THORIA, URANIA, PLUTONIA, AND ZIRCONIA INTO A DRYING LIQUID, THE IMPROVEMENT COMRISING ESTABLISHING AN ELECTRECAL FIELD WITH AN APPLIED VOLTAGE IN THE RANGE OF 500 TO 2000 VOLTS AND PASSING A THIN STREAM OF SAID SOL AT A FLOW RATE OF BETWEEN 0.2-1.2 MILLILITERS PER MINUTE THROUGH SAID ELECTRICAL FIELD AS IT IS INTRODUCED INTO SAID DRYING LIQUID THEREBY FORMING SOL DROPLETS OF A SIZE FROM 50-500 MICRONS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-13 | 1971-05-15 | 1971-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-13 | 1975-05-15 | 1975-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-13 | 1979-05-15 | 1979-11-14 | $7700.00 | Window Closed / Lapsed |