Patent US2539149A successfully refreshed from Google Patents.
US2539149A
Expired / Lapsed
US
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Vapor coating process
Assignee: RCA Corp
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Filing: 1948-10-21
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Granted: 1951-01-23
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Expires: 1968-10-21
Abstract
No abstract record available.
Inventors
- 👤 William A Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:53
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/0021
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A METHOD OF FORMING AN ADHERENT, ABRASIONRESISTING COATING ON A SURFACE OF A REFRACTORY MATERIAL COMPRISING POSITIONING SAID MATERIAL WITHIN AN EVACUATED CHAMBER, INTRODUCING INTO SAID EVACUATED CHAMBER AN AMOUNT OF PURE OXYGEN SUFFICIENT TO PROVIDE A PRESSURE OF 1 TO 50 MICRONS THEREIN, VAPORIZING TITANIUM IN VACUO, AND EXPOSING SAID SURFACE TO SAID VAPORIZED TITANIUM, WHILE IN THE PRESENCE OF SAID OXYGEN.
Claim 2
Independent Claim
63 words
A METHOD OF FORMING AN ADHERENT, ABRASIONRESISTING COATING ON A SURFACE OF A REFRACTORY MATERIAL COMPRISING POSITIONING SAID MATERIAL WITHIN AN EVACUATED CHAMBER, INTRODUCING INTO SAID EVACUATED CHAMBER AN AMOUNT OF PURE OXYGEN SUFFICIENT TO PROVIDE A PRESSURE OF 1 TO 50 MICRONS THEREIN, VAPORIZING TITANIUM IN VACUO, AND EXPOSING SAID SURFACE TO SAID VAPORIZED TITANIUM, WHILE IN THE PRESENCE OF SAID OXYGEN.
References Cited (Backward Citations)
US2077442A
Cited
US2274444A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-22 | 1954-07-24 | 1955-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-22 | 1958-07-24 | 1959-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-22 | 1962-07-24 | 1963-01-23 | $7700.00 | Window Closed / Lapsed |