US3071533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deposition control means
Assignee: VARO Manufacturing Co Inc
•
Filing: 1958-09-11
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Granted: 1963-01-01
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Expires: 1978-09-11
Abstract
No abstract record available.
Inventors
- 👤 Blankenship Ernest Bayne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:25
CPC Classifications
H; H01; H01J; H01J37/00; H01J37/30; H01J37/305; H01J37/3053; C; C23; C23C; C23C14/00; C23C14/22; C23C14/54; C23C14/548; H01J37/304
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A DEVICE FOR EVAPORATING A SUBSTANCE AT A CONTROLLED RATE AND DEPOSITING THE EVAPORANT ON A SURFACE COMPRISING: MEANS PROVIDING AN EVACUATED CHAMBER; A MEANS FOR HOLDING THE SUBSTANCE IN A POSITION IN THE CHAMBER, MEANS FOR PRODUCING ELECTRONS IN SAID EVACUATED CHAMBER, SAID ELECTRON PRODUCING MEANS AND SAID HOLDING MEANS BEING ADAPTED TO BE CONNECTED ACROSS A SOURCE OF ELECTRICAL ENERGY WHEREBY THE ELECTONS PRODUCED BY SAID ELECTRON PRODUCING MEANS ARE CAUSED TO BOMBARD THE SUBSTANCE HELD BY SAID HOLDING MEANS; A CONTROL MEMBER INTERPOSED BETWEEN SAID ELECTRON PROVIDING MEANS AND SAID HOLDING MEANS; AND MEANS RESPONSIVE TO THE RATE OF EVAPORATION OF SAID SUBSTANCE FOR IMPRESSING A POTENTIAL ACROSS SAID CONTROL MEMBER AND SAID ELECTRON PRODUCING MEANS WHICH VARIES IN ACCORDANCE WITH THE RATE OF EVAPORATION OF SAID SUBSTANCE TO MAINTAIN SUBSTANTIALLY CONSTANT THE RATE OF EVAPORATION.
Claim 2
Independent Claim
139 words
A DEVICE FOR EVAPORATING A SUBSTANCE AT A CONTROLLED RATE AND DEPOSITING THE EVAPORANT ON A SURFACE COMPRISING: MEANS PROVIDING AN EVACUATED CHAMBER; A MEANS FOR HOLDING THE SUBSTANCE IN A POSITION IN THE CHAMBER, MEANS FOR PRODUCING ELECTRONS IN SAID EVACUATED CHAMBER, SAID ELECTRON PRODUCING MEANS AND SAID HOLDING MEANS BEING ADAPTED TO BE CONNECTED ACROSS A SOURCE OF ELECTRICAL ENERGY WHEREBY THE ELECTONS PRODUCED BY SAID ELECTRON PRODUCING MEANS ARE CAUSED TO BOMBARD THE SUBSTANCE HELD BY SAID HOLDING MEANS; A CONTROL MEMBER INTERPOSED BETWEEN SAID ELECTRON PROVIDING MEANS AND SAID HOLDING MEANS; AND MEANS RESPONSIVE TO THE RATE OF EVAPORATION OF SAID SUBSTANCE FOR IMPRESSING A POTENTIAL ACROSS SAID CONTROL MEMBER AND SAID ELECTRON PRODUCING MEANS WHICH VARIES IN ACCORDANCE WITH THE RATE OF EVAPORATION OF SAID SUBSTANCE TO MAINTAIN SUBSTANTIALLY CONSTANT THE RATE OF EVAPORATION.
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) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |