Patent US3250694A successfully refreshed from Google Patents.
US3250694A
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US
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Apparatus for coating articles by cathode sputtering
Assignee: International Business Machines Corp
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Filing: 1962-10-17
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Granted: 1966-05-10
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Expires: 1982-10-17
Abstract
No abstract record available.
Inventors
- 👤 Leon I Maissel
- 👤 Riseman Jacob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:57
CPC Classifications
H; H01; H01J; H01J37/00; H01J37/32; H01J37/34; H01J37/3402; C; C23; C23C; C23C14/00; C23C14/22; C23C14/34; C23C14/35
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
75 words
APPARATUS FOR COATING AN ARTICLE COMPRISING: A CHAMBER CAPABLE OF HOLDING A HIGH VACUUM; A SUBSTANTIALLY CYLINDRICAL CATHODE HAVING AT LEAST ONE OPEN AND AND AN ANODE POSITIONED WITHIN SAID CHAMBER; SAID CATHODE BEING SUBSTANTIALLY SMALLER THAN SAID CHAMBER; MEANS FOR SUPPORTING SAID ARTICLE WITHIN SAID CYLINDRICAL CATHODE; A SHIELD DISPOSED ABOUT SAID CATHODE; AND MEANS FOR APPLYING A VOLTAGE ACROSS SAID CATHODE AND SAID ANODE TO CAUSE A GLOW DISCHARGE WITHIN SAID CYLINDRICAL CATHODE.
Claim 2
Dependent Claim
75 words
APPARATUS FOR COATING AN ARTICLE COMPRISING: A CHAMBER CAPABLE OF HOLDING A HIGH VACUUM; A SUBSTANTIALLY CYLINDRICAL CATHODE HAVING AT LEAST ONE OPEN AND AND AN ANODE POSITIONED WITHIN SAID CHAMBER; SAID CATHODE BEING SUBSTANTIALLY SMALLER THAN SAID CHAMBER; MEANS FOR SUPPORTING SAID ARTICLE WITHIN SAID CYLINDRICAL CATHODE; A SHIELD DISPOSED ABOUT SAID CATHODE; AND MEANS FOR APPLYING A VOLTAGE ACROSS SAID CATHODE AND SAID ANODE TO CAUSE A GLOW DISCHARGE WITHIN SAID CYLINDRICAL CATHODE.
Claim 3
Dependent Claim
25 words
APPARATUS FOR COATING ARTICLES COMPRISING: A CHAMBER CAPABLE OF HOLDING A HIGH VACUUM; A CYLINDRICAL OPEN ENDED CATHODE AND AN ANODE POSITIONED WITHIN SAID CHAMBER;
Claim 4
Dependent Claim
25 words
APPARATUS FOR COATING ARTICLES COMPRISING: A CHAMBER CAPABLE OF HOLDING A HIGH VACUUM; A CYLINDRICAL OPEN ENDED CATHODE AND AN ANODE POSITIONED WITHIN SAID CHAMBER;
References Cited (Backward Citations)
US3123499A
Cited
US2239642A
Cited
US2251510A
Cited
US2746420A
Cited
US2816523A
Cited
US2976174A
Cited
US3108900A
Cited
US3104180A
Cited
US3023727A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-09 | 1969-11-08 | 1970-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-09 | 1973-11-08 | 1974-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-09 | 1977-11-08 | 1978-05-10 | $7700.00 | Window Closed / Lapsed |