US2748026A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for thermal evaporation
Assignee: Libbey Owens Ford Glass Co
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Filing: 1953-03-26
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Granted: 1956-05-29
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Expires: 1973-03-26
Abstract
No abstract record available.
Inventors
- 👤 Jr James C Ogle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:27
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/22; C23C14/56; C23C14/568; C23C14/24; C23C14/26
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
143 words
IN A METHOD OF APPLYING A PLURALITY OF COATINGS OF THERMALLY EVAPORABLE MATERIAL ONTO A SURFACE OF A SUPPORT BODY, THE STEPS OF FIXEDLY MOUNTING A PLURALITY OF EVAPORATION SOURCES OF SAID MATERIALS IN SPACED RELATION ALONG A DEFINED CONTOUR WITHIN A VACUUM CHAMBER, MOUNTING SAID SUPPORT BODY WITH THE SURFACE THEREOF TO BE COATED FACING AND OPPOSITE A FIRST SOURCE OF MATERIAL, ESTABLISHING A VACUUM WITHIN SAID CHAMBER AND EVAPORATING MATERIAL FROM SAID FIRST EVAPORATION SOURCE TO PROVIDE A FIRST COATING ON SAID SURFACE, MOVING SAID SUPPORT BODY A FIXED DISTANCE ALONG A DEFINED PATH TO PLACE A PORTION OF THE SURFACE COATED BY SAID FIRST SOURCE OPPOSITE AND FACING A SECOND SOURCE OF EVAPORABLE MATERIAL, SAID PATH BEING SPACED EQUIDISTANTLY FROM SAID SOURCES AND PARALLEL TO THE CONTOUR THEREOF, AND THERMALLY EVAPORATING MATERIAL FROM SAID SECOND SOURCE ONTO SAID SUPPORT BODY.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-29 | 1959-11-28 | 1960-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-29 | 1963-11-28 | 1964-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-29 | 1967-11-28 | 1968-05-29 | $7700.00 | Window Closed / Lapsed |