Patent US3211128A successfully refreshed from Google Patents.
US3211128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum evaporator apparatus
Assignee: Individual
•
Filing: 1962-05-31
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Granted: 1965-10-12
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Expires: 1982-05-31
Abstract
No abstract record available.
Inventors
- 👤 Roy F Potter
- 👤 George G Kretschmar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:33
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
IN AN APPARATUS FOR STOICHIOMETRICALLY FORMING A COMPOSITE CRYSTAL FILM WHICH INCLUDES VAPORIZING SOURCES AND A SUBSTRATE HOLDER EACH OF WHICH ARE MAINTAINED SIMULTANEOUSLY AT WIDELY DIFFERING TEMPERATURES IN ORDER TO MAINTAIN THE CORRECT PROPORTIONS IN FORMING THE DESIRED FILM, THE COMBINATION COMPRISING: (A) AN OPEN END CONTAINER, (B) A SUPPORT PLATE CLOSING SAID CONTAINER IN A SEALING RELATION OF PROVIDING SAID CONTAINER AIRTIGHT, (C) SUPPORTING MEANS MOUNTED ON SAID SUPPORTING PLATE AND EXTENDING INTO SAID SEALED CONTAINER, (D) A PLURALITY OF CRUCIBLES FOR CONTAINING THE MATERIALS TO BE EVAPORATED MOUNTED ON SAID SUPPORTING MEANS, EACH OF SAID CRUCIBLES BEING INDIVIDUALLY HEATED AND BEING SURROUNDED BY A HEAT SHIELD SO THAT EACH CRUCIBLE IS HEAT RADIATION SHIELDED FROM EACH OTHER FOR SIMULTANEOUSLY AND SEPARATELY VAPORIZING SAID MATERIALS, (E) A SUBSTRATE UPON WHICH SAID VAPORIZED MATERIALS ARE DEPOSITED, (F) MEANS MOUNTED ON SAID SUPPORTING MEANS FOR SUPPORTING SAID SUBSTRATE IN SAID CONTAINER SPACED FROM SAID CRUCIBLES,
Claim 2
Dependent Claim
155 words
IN AN APPARATUS FOR STOICHIOMETRICALLY FORMING A COMPOSITE CRYSTAL FILM WHICH INCLUDES VAPORIZING SOURCES AND A SUBSTRATE HOLDER EACH OF WHICH ARE MAINTAINED SIMULTANEOUSLY AT WIDELY DIFFERING TEMPERATURES IN ORDER TO MAINTAIN THE CORRECT PROPORTIONS IN FORMING THE DESIRED FILM, THE COMBINATION COMPRISING: (A) AN OPEN END CONTAINER, (B) A SUPPORT PLATE CLOSING SAID CONTAINER IN A SEALING RELATION OF PROVIDING SAID CONTAINER AIRTIGHT, (C) SUPPORTING MEANS MOUNTED ON SAID SUPPORTING PLATE AND EXTENDING INTO SAID SEALED CONTAINER, (D) A PLURALITY OF CRUCIBLES FOR CONTAINING THE MATERIALS TO BE EVAPORATED MOUNTED ON SAID SUPPORTING MEANS, EACH OF SAID CRUCIBLES BEING INDIVIDUALLY HEATED AND BEING SURROUNDED BY A HEAT SHIELD SO THAT EACH CRUCIBLE IS HEAT RADIATION SHIELDED FROM EACH OTHER FOR SIMULTANEOUSLY AND SEPARATELY VAPORIZING SAID MATERIALS, (E) A SUBSTRATE UPON WHICH SAID VAPORIZED MATERIALS ARE DEPOSITED, (F) MEANS MOUNTED ON SAID SUPPORTING MEANS FOR SUPPORTING SAID SUBSTRATE IN SAID CONTAINER SPACED FROM SAID CRUCIBLES,
References Cited (Backward Citations)
US2443196A
Cited
US2614524A
Cited
US2759861A
Cited
US2900282A
Cited
US2996418A
Cited
US2938816A
Cited
US3015586A
Cited
US3023727A
Cited
US3047424A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |