Patent US3395447A successfully refreshed from Google Patents.
US3395447A
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Method for mass producing semiconductor devices
Assignee: Siemens AG
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Filing: 1965-03-25
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Granted: 1968-08-06
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Expires: 1985-03-25
Abstract
No abstract record available.
Inventors
- 👤 Beyerlein Fritz-Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:35
CPC Classifications
H; H10; H10W; H10W70/00; H10W70/40; H10W70/481; H10W72/00; H10W72/50; H10W72/531; H10W72/536; H10W72/551; H10W72/552; H10W74/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49121
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) | 1971-08-06 | 1972-02-05 | 1972-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-06 | 1976-02-05 | 1976-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-06 | 1980-02-05 | 1980-08-06 | $7700.00 | Window Closed / Lapsed |