Patent US2612440A successfully refreshed from Google Patents.
US2612440A
Expired / Lapsed
US
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Production of metal carbonyl powders of small size
Assignee: GAF Chemicals Corp
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Filing: 1950-05-03
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Granted: 1952-09-30
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Expires: 1970-05-03
Abstract
No abstract record available.
Inventors
- 👤 George O Altmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:27
CPC Classifications
B; B22; B22F; B22F9/00; B22F9/16; B22F9/30; B22F9/305; C; C22; C22B; C22B5/00; C22B5/02; C22B5/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
THE PROCESS OF PRODUCING CARBONYL METALS OF A VERY SMALL PARTICLE SIZE AND UNIFORM SIZE DISTRIBUTION WHICH COMPRISES THERMALLY DECOMPOSING A METAL CARBONYL IN THE FREE SPACE OF A REACTOR, FEEDING INTO THE REACTOR THE VAPORS OF A LIQUID BOILING ABOVE THE DECOMPOSITION TEMPERATURE OF SAID METAL CARBONYL AND CAUSING THE METAL PRODUCED BY SUCH DECOMPOSITION TO DEPOSIT ON LIQUID NUCLEI PRODUCED WITHIN SAID FREE SPACE BY THE CONDENSATION OF THE VAPORS OF SAID LIQUID.
Claim 2
Dependent Claim
75 words
THE PROCESS OF PRODUCING CARBONYL METALS OF A VERY SMALL PARTICLE SIZE AND UNIFORM SIZE DISTRIBUTION WHICH COMPRISES THERMALLY DECOMPOSING A METAL CARBONYL IN THE FREE SPACE OF A REACTOR, FEEDING INTO THE REACTOR THE VAPORS OF A LIQUID BOILING ABOVE THE DECOMPOSITION TEMPERATURE OF SAID METAL CARBONYL AND CAUSING THE METAL PRODUCED BY SUCH DECOMPOSITION TO DEPOSIT ON LIQUID NUCLEI PRODUCED WITHIN SAID FREE SPACE BY THE CONDENSATION OF THE VAPORS OF SAID LIQUID.
References Cited (Backward Citations)
US1759660A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-30 | 1956-03-31 | 1956-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-30 | 1960-03-31 | 1960-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-30 | 1964-03-31 | 1964-09-30 | $7700.00 | Window Closed / Lapsed |