Patent US5448484A successfully refreshed from Google Patents.
Patent US2955566A successfully refreshed from Google Patents.
US2955566A
Expired / Lapsed
US
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Dissociation-deposition unit for the production of chromium
Assignee: Chilean Nitrate Corp
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Filing: 1957-04-16
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Granted: 1960-10-11
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Expires: 1977-04-16
Abstract
No abstract record available.
Inventors
- 👤 Ivor E Campbell
- 👤 Jr John M Blocher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:02
CPC Classifications
C; C22; C22B; C22B34/00; C22B34/30; C22B34/32; C23; C23C; C23C16/00; C23C16/06; C23C16/08; C23C16/10; Y; Y10; Y10S; Y10S266/00; Y10S266/905
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
APPARATUS FOR USE IN RECOVERING CHROMIUM METAL IN SUBSTANTIALLY PURE FORM FROM CHROMUIM IODIDE BY THERMAL DISSOCATION OF THE IODIDE AND DEPOSITION OF CHROMUIM ON A HEATED DISSOCIATION-DEPOSITION SURFACE THAT COMPRISES, A DISSOCATION VESSEL, A PLURALITY OF DISSOCIATIONDEPOSITION ELEMENTS PROJECTING WITHSAID DISSOCATION VESSEL IN SPACED PARALLEL RELATIONSHIP TO EACH OTHER, A METALLIC DISSOCIATION-DEPOSITION SHEAT REMOVABLY MOUNTED AROUND EACH OF SAID DISSOCATION-DEPOSITION ELEMENTS, MEANS FOR MAINTAINING AN ATMOSPHERE OF CHROMUIM IODIDE IN VAPOR FORM IN CONTACT WITH SAID DISSOCATION-DEPOSITION SHEATS, AND MEANS FOR INDIRECTLY HEATING SAID DISSOCIATION-DESPOSITION ELEMENTS AND ASSOCIATED SHEATS TO EFFECT DISSOCATION OF SAID CHROMUIM IODIDE AND DEPOSITION OF CHROMUIM METAL ON SAID SHEATS.
Claim 2
Dependent Claim
105 words
APPARATUS FOR USE IN RECOVERING CHROMIUM METAL IN SUBSTANTIALLY PURE FORM FROM CHROMUIM IODIDE BY THERMAL DISSOCATION OF THE IODIDE AND DEPOSITION OF CHROMUIM ON A HEATED DISSOCIATION-DEPOSITION SURFACE THAT COMPRISES, A DISSOCATION VESSEL, A PLURALITY OF DISSOCIATIONDEPOSITION ELEMENTS PROJECTING WITHSAID DISSOCATION VESSEL IN SPACED PARALLEL RELATIONSHIP TO EACH OTHER, A METALLIC DISSOCIATION-DEPOSITION SHEAT REMOVABLY MOUNTED AROUND EACH OF SAID DISSOCATION-DEPOSITION ELEMENTS, MEANS FOR MAINTAINING AN ATMOSPHERE OF CHROMUIM IODIDE IN VAPOR FORM IN CONTACT WITH SAID DISSOCATION-DEPOSITION SHEATS, AND MEANS FOR INDIRECTLY HEATING SAID DISSOCIATION-DESPOSITION ELEMENTS AND ASSOCIATED SHEATS TO EFFECT DISSOCATION OF SAID CHROMUIM IODIDE AND DEPOSITION OF CHROMUIM METAL ON SAID SHEATS.
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) | 1963-10-11 | 1964-04-11 | 1964-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-11 | 1968-04-11 | 1968-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-11 | 1972-04-11 | 1972-10-11 | $7700.00 | Window Closed / Lapsed |