US3487272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Voltage dependent semiconductor capacitor of mesa type
Assignee: Siemens AG
•
Filing: 1967-12-04
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Granted: 1969-12-30
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Expires: 1987-12-04
Abstract
No abstract record available.
Inventors
- 👤 Karl Siebertz
- 👤 Ernst Hofmeister
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:17
CPC Classifications
H; H10; H10D; H10D1/00; H10D1/60; H10D1/62; H10D1/64; H10D99/00; H10W; H10W72/00; H10W72/50; H10W72/541; H10W72/5453; Y; Y10; Y10S; Y10S148/00; Y10S148/049; Y10S148/145
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) | 1972-12-29 | 1973-06-30 | 1973-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-29 | 1977-06-30 | 1977-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-29 | 1981-06-30 | 1981-12-30 | $7700.00 | Window Closed / Lapsed |