Patent US3322577A successfully refreshed from Google Patents.
US3322577A
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Method and apparatus for the continuous production of oxide coatings
Assignee: Temescal Metallurgical Corp
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Filing: 1963-05-03
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Granted: 1967-05-30
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Expires: 1983-05-03
Abstract
No abstract record available.
Inventors
- 👤 Jr Hugh R Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:00
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/0029; H01G9/0032; C; C23; C23C; C23C8/00; C23C8/06; C23C8/08; C23C8/10; C23C8/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A CONTINUOUS PROCESS FOR OXIDIZING SURFACES OF METAL COMPRISING: (A) HIGHLY EVACUATING A REGION; (B) CONTINUOUSLY PASSING METAL TO BE OXIDIZED THROUGH THE EVACUATED REGION WHILE MAINTAINING THE VACUUM THEREIN; (C) RAISING THE SURFACE OF TEMPERATURE OF METAL WITHIN THE EVACUATED REGION BY ELECTRON BOMBARDMENT HEATING OF THE METAL THEREIN; (D) ESTABLISHING A LOW PRESSURE OXYGEN ATMOSPHERE ADJACENT THE SURFACE OF METAL IN THE EVACUATED REGION; AND (E) COOLING THE METAL.
Claim 2
Dependent Claim
71 words
A CONTINUOUS PROCESS FOR OXIDIZING SURFACES OF METAL COMPRISING: (A) HIGHLY EVACUATING A REGION; (B) CONTINUOUSLY PASSING METAL TO BE OXIDIZED THROUGH THE EVACUATED REGION WHILE MAINTAINING THE VACUUM THEREIN; (C) RAISING THE SURFACE OF TEMPERATURE OF METAL WITHIN THE EVACUATED REGION BY ELECTRON BOMBARDMENT HEATING OF THE METAL THEREIN; (D) ESTABLISHING A LOW PRESSURE OXYGEN ATMOSPHERE ADJACENT THE SURFACE OF METAL IN THE EVACUATED REGION; AND (E) COOLING THE METAL.
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) | 1970-05-29 | 1970-11-28 | 1971-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-29 | 1974-11-28 | 1975-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-29 | 1978-11-28 | 1979-05-30 | $7700.00 | Window Closed / Lapsed |