US2812411A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for vapor deposition of metals
Assignee: Raytheon Co
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Filing: 1955-09-30
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Granted: 1957-11-05
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Expires: 1975-09-30
Abstract
No abstract record available.
Inventors
- 👤 Moles Leslie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:04
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/22; C23C14/24; C23C14/26; H; H10; H10P; H10P95/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
IN AN APPARATUS FOR THE VAPOR DEPOSITION OF MOLTEN METAL IN SUBSTANTIAL THICKNESS UPON A SURFACE WHEREIN THE MOLTEN METAL IS EVAPORATED FROM A RESISTANCE HEATING FILAMENT BY THE APPLICATION OF ELECTIC CURRENT TO THE FILAMENT UPON WHICH HAS BEEN PLACED THE METAL TO BE EVAPORATED, THE RESISTANCE HEATIN FILAMENT COMPRISING: A CONTINUOUS LENGTH OF WIRE SAID WIRE HAVING A SUBSTANTIALLY CONSTANT CROSS SECTIONAL AREA, AND PHYSICAL BARRIERS OF HEAT CONDUCTIVE MATERIAL SPACED AT INTERVALS ALONG THE LENGTH OF SAID FILAMENT AND IN SURROUNDING RELAIONSHIP THEREWITH, SAID PHYSICAL BARRIERS HAVING A MELTING TEMPERATURE OF SUBSTANTIALLY GREATER THAN THE VAPORIZING TEMPERATURE OF SAID MOLTEN METAL AND A GREATER CROSS-SECTIONAL AREA THAN THAT OF SAID WIRE.
Claim 2
Dependent Claim
114 words
IN AN APPARATUS FOR THE VAPOR DEPOSITION OF MOLTEN METAL IN SUBSTANTIAL THICKNESS UPON A SURFACE WHEREIN THE MOLTEN METAL IS EVAPORATED FROM A RESISTANCE HEATING FILAMENT BY THE APPLICATION OF ELECTIC CURRENT TO THE FILAMENT UPON WHICH HAS BEEN PLACED THE METAL TO BE EVAPORATED, THE RESISTANCE HEATIN FILAMENT COMPRISING: A CONTINUOUS LENGTH OF WIRE SAID WIRE HAVING A SUBSTANTIALLY CONSTANT CROSS SECTIONAL AREA, AND PHYSICAL BARRIERS OF HEAT CONDUCTIVE MATERIAL SPACED AT INTERVALS ALONG THE LENGTH OF SAID FILAMENT AND IN SURROUNDING RELAIONSHIP THEREWITH, SAID PHYSICAL BARRIERS HAVING A MELTING TEMPERATURE OF SUBSTANTIALLY GREATER THAN THE VAPORIZING TEMPERATURE OF SAID MOLTEN METAL AND A GREATER CROSS-SECTIONAL AREA THAN THAT OF SAID WIRE.
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) | 1960-11-04 | 1961-05-06 | 1961-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-04 | 1965-05-06 | 1965-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-04 | 1969-05-06 | 1969-11-05 | $7700.00 | Window Closed / Lapsed |