US3341320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of low particle size-high surface area metal powders
Assignee: Individual
•
Filing: 1966-04-05
•
Granted: 1967-09-12
•
Expires: 1986-04-05
Abstract
No abstract record available.
Inventors
- 👤 Seymour H Smiley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:14
CPC Classifications
B; B22; B22F; B22F9/00; B22F9/16; B22F9/18; B22F9/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A PROCESS FOR FORMING A POWDER FROM A VOLATILE FLUORIDE OF A METAL SELECTED FROM GROUP IIB, IVA, VA, VIA, VIIA, AND VIII OF THE PERIODIC TABLE WHICH COMPRISES SEPARATELY INTRODUCING GAS STREAMS CONSISTING OF (A) A VOLATILE METAL FLUORIDE OF THE METAL OF THE SELECTED CLASS IN A CARRIER SELECTED FROM HYDROGEN AND FLUORINE AND (B) A GAS SELECTED FORM THE NON-SELECTED CARRIER GAS IN (A) INTO A NOZZLE AND SURROUNDING ANNULUS NOZZLE ARRANGEMENT WITHIN A REACTION ZONE, REACTING SAID HYDROGEN AND FLUORINE TO CAUSE IGNITION THEREOF TO FORM A HYDROGENFLUORINE FLAME, COLLECTING THE RESULTANT POWDER ISSUING FROM SAID FLAME AND WITHDRAWING THE RESULTING GASES FROM SAID REACTION ZONE.
Claim 2
Dependent Claim
110 words
A PROCESS FOR FORMING A POWDER FROM A VOLATILE FLUORIDE OF A METAL SELECTED FROM GROUP IIB, IVA, VA, VIA, VIIA, AND VIII OF THE PERIODIC TABLE WHICH COMPRISES SEPARATELY INTRODUCING GAS STREAMS CONSISTING OF (A) A VOLATILE METAL FLUORIDE OF THE METAL OF THE SELECTED CLASS IN A CARRIER SELECTED FROM HYDROGEN AND FLUORINE AND (B) A GAS SELECTED FORM THE NON-SELECTED CARRIER GAS IN (A) INTO A NOZZLE AND SURROUNDING ANNULUS NOZZLE ARRANGEMENT WITHIN A REACTION ZONE, REACTING SAID HYDROGEN AND FLUORINE TO CAUSE IGNITION THEREOF TO FORM A HYDROGENFLUORINE FLAME, COLLECTING THE RESULTANT POWDER ISSUING FROM SAID FLAME AND WITHDRAWING THE RESULTING GASES FROM SAID REACTION ZONE.
References Cited (Backward Citations)
US3062638A
Cited
US3177067A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |