Patent US2906637A successfully refreshed from Google Patents.
US2906637A
Expired / Lapsed
US
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Method of forming a film a short distance from a surface
Assignee: ELECTRONIQUE SOC GEN
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Filing: 1958-02-13
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Granted: 1959-09-29
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Expires: 1978-02-13
Abstract
No abstract record available.
Inventors
- 👤 Auphan Michel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:36
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/04; C23C14/042; H; H01; H01B; H01B1/00; Y; Y10; Y10S; Y10S438/00; Y10S438/942; Y10S438/944
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
A METHOD OF FORMING A FILM SLIGHTLY SPACED FROM A SURFACE, COMPRISING DISPOSING A CRUCIBLE IN FRONT OF SAID SURFACE AND IN SPACED RELATION THERETO, DISPOSING A GRID BETWEEN THE CRUCIBLE BEING RELATIVELY GREAT COMTWEEN THE GRID AND THE CRUCIBLE BEING RELATIVELY GREAT COMPARED TO THE DISTANCE BETWEEN THE GRID AND THE SURFACE, THE WIDTH OF THE CRUCIBLE BEING RELATIVELY NARROW COMPARED TO THE WIDTH OF THE SURFACE AND THE GRID; DRAWING A VACUUM ON THE SURFACE, GRID, AND CURCIBLE, EVAPORATING FROM THE CRUCIBLE A FIRST SUBSTANCE TO DEPOSIT THE SUBSTANCE AS STRIPS ON SAID SURFACE; DISPOSING A SECOND CRUCIBLE IN A POSISTION LATERALLY DISPLACED FROM THE FIRST CRUCIBLE, THE SECOND CRUCIBLE BEING WIDER THAN THE FIRST CRUCIBLE, DRAWING A VACUUM ON THE SURFACE, SECOND CRUCIBLE AND GRID, AND EVAPORATING FROM THE SECOND CRUCIBLE A SUBSTANCE HAVING A SUBLIMATION TEMPERATURE LOWER THAN THAT OF THE FIRST SUBSTANCE TO DE-
Claim 2
Independent Claim
149 words
A METHOD OF FORMING A FILM SLIGHTLY SPACED FROM A SURFACE, COMPRISING DISPOSING A CRUCIBLE IN FRONT OF SAID SURFACE AND IN SPACED RELATION THERETO, DISPOSING A GRID BETWEEN THE CRUCIBLE BEING RELATIVELY GREAT COMTWEEN THE GRID AND THE CRUCIBLE BEING RELATIVELY GREAT COMPARED TO THE DISTANCE BETWEEN THE GRID AND THE SURFACE, THE WIDTH OF THE CRUCIBLE BEING RELATIVELY NARROW COMPARED TO THE WIDTH OF THE SURFACE AND THE GRID; DRAWING A VACUUM ON THE SURFACE, GRID, AND CURCIBLE, EVAPORATING FROM THE CRUCIBLE A FIRST SUBSTANCE TO DEPOSIT THE SUBSTANCE AS STRIPS ON SAID SURFACE; DISPOSING A SECOND CRUCIBLE IN A POSISTION LATERALLY DISPLACED FROM THE FIRST CRUCIBLE, THE SECOND CRUCIBLE BEING WIDER THAN THE FIRST CRUCIBLE, DRAWING A VACUUM ON THE SURFACE, SECOND CRUCIBLE AND GRID, AND EVAPORATING FROM THE SECOND CRUCIBLE A SUBSTANCE HAVING A SUBLIMATION TEMPERATURE LOWER THAN THAT OF THE FIRST SUBSTANCE TO DE-
References Cited (Backward Citations)
US2644208A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-28 | 1963-03-30 | 1963-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-28 | 1967-03-30 | 1967-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-28 | 1971-03-30 | 1971-09-29 | $7700.00 | Window Closed / Lapsed |