US2989671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Voltage sensitive semiconductor capacitor
Assignee: Pacific Semiconductors Inc
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Filing: 1958-05-23
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Granted: 1961-06-20
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Expires: 1978-05-23
Abstract
No abstract record available.
Inventors
- 👤 Sanford H Barnes
- 👤 John E Mann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:25
CPC Classifications
H; H10; H10D; H10D1/00; H10D1/60; H10D1/62; G; G11; G11C; G11C11/00; G11C11/21; G11C11/24; H10D1/64; H10D48/00; H10D48/30; H10D99/00; H10W; H10W72/00; H10W76/00; H10W76/60
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) | 1964-06-19 | 1964-12-19 | 1965-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-19 | 1968-12-19 | 1969-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-19 | 1972-12-19 | 1973-06-20 | $7700.00 | Window Closed / Lapsed |