US3270109A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of inorganic oxide monofilaments
Assignee: Horizons Inc
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Filing: 1963-03-15
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Granted: 1966-08-30
•
Expires: 1983-03-15
Abstract
No abstract record available.
Inventors
- 👤 Robert H Kelsey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:32
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/622; C04B35/62227; C04B35/62231; Y; Y10; Y10S; Y10S264/00; Y10S264/19; Y10S65/00; Y10S65/901
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
IN A PROCESS FOR PREPARING INORGANIC OXIDE FILAMENTS WHICH COMPRISES PREPARING A DILUTE AQUEOUS SOLUTION OF AN OXYGEN CONTAINING ORGANIC SALT OF A METAL SELECTED FROM THE GROUP CONSISTING OF ALUMINUM, TITANIUM, VANADIUM, CHROMIUM, MANGANESE, IRON, COBALT, NICKEL, YTRIUM ZIRCONIUM, THE LANTHANIDE RARE EARTHS, AND HAFNIUM; CONCENTRATING SAID SOLUTION TO A VISCOSITY OF AT LEAST ABOUT 50,000 CENTIPOISES AND THEN FORMING SAID VISCOUS LIQUID INTO FILAMENTS, AND THEREAFTER HEATING SAID FILAMENTS TO A TEMPRATURE SUFFICIENT TO CONVERT THE SAME TO SAID METAL OXIDE, THE IMPROVEMENT WHICH COMPRISES EXTRUDING SAID LIQUID THROUGH AN ORIFICE AND DIRECTLY INTO A LIQUID COMPRISING AN ALCOHOL SELECTED FROM THE GROUP CONSISTING OF STRAIGHT CHAIN AND BRANCHED CHAIN ALIPHATIC ALCOHOLS WITH NOT LESS THAN 3 AND NOT MORE THAN 6 CARBON ATOMS.
Claim 2
Dependent Claim
126 words
IN A PROCESS FOR PREPARING INORGANIC OXIDE FILAMENTS WHICH COMPRISES PREPARING A DILUTE AQUEOUS SOLUTION OF AN OXYGEN CONTAINING ORGANIC SALT OF A METAL SELECTED FROM THE GROUP CONSISTING OF ALUMINUM, TITANIUM, VANADIUM, CHROMIUM, MANGANESE, IRON, COBALT, NICKEL, YTRIUM ZIRCONIUM, THE LANTHANIDE RARE EARTHS, AND HAFNIUM; CONCENTRATING SAID SOLUTION TO A VISCOSITY OF AT LEAST ABOUT 50,000 CENTIPOISES AND THEN FORMING SAID VISCOUS LIQUID INTO FILAMENTS, AND THEREAFTER HEATING SAID FILAMENTS TO A TEMPRATURE SUFFICIENT TO CONVERT THE SAME TO SAID METAL OXIDE, THE IMPROVEMENT WHICH COMPRISES EXTRUDING SAID LIQUID THROUGH AN ORIFICE AND DIRECTLY INTO A LIQUID COMPRISING AN ALCOHOL SELECTED FROM THE GROUP CONSISTING OF STRAIGHT CHAIN AND BRANCHED CHAIN ALIPHATIC ALCOHOLS WITH NOT LESS THAN 3 AND NOT MORE THAN 6 CARBON ATOMS.
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) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |