US3477935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming thin film resistors by cathodic sputtering
Assignee: Union Carbide Corp
•
Filing: 1966-06-07
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Granted: 1969-11-11
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Expires: 1986-06-07
Abstract
No abstract record available.
Inventors
- 👤 John H Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:59
CPC Classifications
H; H01; H01J; H01J37/00; H01J37/32; H01J37/34; C; C23; C23C; C23C14/00; C23C14/22; C23C14/34; H01C; H01C17/00; H01C17/06; H01C17/075; H01C17/12; H10; H10P; H10P95/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA712576A
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US1769229A
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US2189580A
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US2638425A
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US2808351A
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US2992918A
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US2953484A
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US3218194A
Cited
US3325258A
Cited
US3381255A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-10 | 1973-05-12 | 1973-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-10 | 1977-05-12 | 1977-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-10 | 1981-05-12 | 1981-11-11 | $7700.00 | Window Closed / Lapsed |