Patent US2685535A successfully refreshed from Google Patents.
US2685535A
Expired / Lapsed
US
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Method and apparatus for deposition of materials by thermal decomposition
Assignee: Commonwealth Engineering Company of Ohio
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Filing: 1951-02-01
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Granted: 1954-08-03
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Expires: 1971-02-01
Abstract
No abstract record available.
Inventors
- 👤 Nack Herman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:18
CPC Classifications
C; C23; C23C; C23C16/00; C23C16/44; C23C16/48; C23C16/448
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
59 words
A METHOD OF COATING AN ELECTRICALLY CONDUCTIVE WORKPIECE COMPRISING THE STEPS OF SUPPORTING THE WORKPIECE WITHIN A CHAMBER, CREATING AN ELECTROSTATIC FIELD WITHIN SAID CHAMBER AND HAVING SAID WORKPIECE CONNECTED AS THE CATHODE, CONDUCTING A GASEOUS METAL CARBONYL IN CONTACT WITH RADIOACTIVE MATERAIL AND THEREAFTER CONDUCTING SAID GASEOUS METAL CARBONYL THROUGH SAID CHAMBER AND IN CONTACT WITH SAID WORKPIECE.
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) | 1957-08-02 | 1958-02-01 | 1958-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-02 | 1962-02-01 | 1962-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-02 | 1966-02-01 | 1966-08-03 | $7700.00 | Window Closed / Lapsed |