Patent US2240680A successfully refreshed from Google Patents.
US3020177A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Art of vaporizing materials
Assignee: Continental Can Co Inc
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Filing: 1959-05-13
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Granted: 1962-02-06
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Expires: 1979-05-13
Abstract
No abstract record available.
Inventors
- 👤 Alexander Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:55
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/22; C23C14/24; C23C14/26; C23C14/246
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
THE METHOD OF PRODUCING VAPORS FOR VACUUM DEPOSITION OF A MELTABLE AND VAPORIZABLE MATERIAL, WHICH COMPRISES PRIVIDING A HEATER BODY HAVING A GREATER EFFECTIVE CROSS-SECTION AT ONE END THAN AT THE OTHER END AND AN UPPER SURFACE FOR SUPPORTING THE MOLTEN METAL, MOUNTING THE BODY IN A VACUUM CHAMBER WITH SAID UPPER SURFACE OF THE BODY INCLINED DOWNWADLY FROM THE SAID ONE END THEREOF AT AN ANGLE OF 2 TO 45 DEGREES, APPLYING AN ELECTRICAL POTENTIAL DIFFERENCE FROM ONE END OF THE BODY TO THE OTHER WHEREBY THE BODY IS RESISTIVELY HEATED WITH A FIRST REGION AT SAID ONE END OF SAID SURFACE ABOVE THE MELTING POINT OF THE VAPORIZABLE MATERIAL AND BELOW THE TEMPERATURE OF SIGNIFICANT EVAPORATION THEREOF AND OTHER AND LOWER PARTS OF SAID SURFACE AT TEMPERATURE ABOVE THAT FOR
Claim 2
Independent Claim
132 words
THE METHOD OF PRODUCING VAPORS FOR VACUUM DEPOSITION OF A MELTABLE AND VAPORIZABLE MATERIAL, WHICH COMPRISES PRIVIDING A HEATER BODY HAVING A GREATER EFFECTIVE CROSS-SECTION AT ONE END THAN AT THE OTHER END AND AN UPPER SURFACE FOR SUPPORTING THE MOLTEN METAL, MOUNTING THE BODY IN A VACUUM CHAMBER WITH SAID UPPER SURFACE OF THE BODY INCLINED DOWNWADLY FROM THE SAID ONE END THEREOF AT AN ANGLE OF 2 TO 45 DEGREES, APPLYING AN ELECTRICAL POTENTIAL DIFFERENCE FROM ONE END OF THE BODY TO THE OTHER WHEREBY THE BODY IS RESISTIVELY HEATED WITH A FIRST REGION AT SAID ONE END OF SAID SURFACE ABOVE THE MELTING POINT OF THE VAPORIZABLE MATERIAL AND BELOW THE TEMPERATURE OF SIGNIFICANT EVAPORATION THEREOF AND OTHER AND LOWER PARTS OF SAID SURFACE AT TEMPERATURE ABOVE THAT FOR
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) | 1965-02-05 | 1965-08-07 | 1966-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-05 | 1969-08-07 | 1970-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-05 | 1973-08-07 | 1974-02-06 | $7700.00 | Window Closed / Lapsed |