Patent US3993551A successfully refreshed from Google Patents.
US3405381A
Expired / Lapsed
US
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Thin film resistor
Assignee: Vishay Intertechnology Inc
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Filing: 1965-05-04
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Granted: 1968-10-08
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Expires: 1985-05-04
Abstract
No abstract record available.
Inventors
- 👤 Zandman Felix
- 👤 Branin A Boyd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:12
CPC Classifications
H; H01; H01C; H01C17/00; H01C17/22; H01C17/24; H01C17/245; H01C1/00; H01C1/02; H01C1/024; H01C1/032; H01C17/232; H01C17/2416; H01C7/00; H01C7/06
Claims Analysis
Total Claims: 0
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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) | 1971-10-08 | 1972-04-08 | 1972-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-08 | 1976-04-08 | 1976-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-08 | 1980-04-08 | 1980-10-08 | $7700.00 | Window Closed / Lapsed |