US3536600A
Expired / Lapsed
US
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Method of manufacturing semiconductor devices using an electrolytic etching process and semiconductor device manufactured by this method
Assignee: US Philips Corp
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Filing: 1968-02-21
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Granted: 1970-10-27
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Expires: 1988-02-21
Abstract
No abstract record available.
Inventors
- 👤 Hendrikus Josephus Antoni Dijk
- 👤 Leonardus Augustinus Hube Hoof
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:31
CPC Classifications
H; H10; H10D; H10D84/00; H10D84/40; H10D84/401; H10D84/403; C; C25; C25F; C25F3/00; C25F3/02; C25F3/12; H10P; H10P50/00; H10P50/60; H10P50/61; H10P50/613; H10P95/00; Y; Y10; Y10S; Y10S148/00; Y10S148/037; Y10S148/051; Y10S148/085; Y10S148/135; Y10S438/00; Y10S438/914; Y10S438/924; Y10S438/928
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) | 1973-10-26 | 1974-04-27 | 1974-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-26 | 1978-04-27 | 1978-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-26 | 1982-04-27 | 1982-10-27 | $7700.00 | Window Closed / Lapsed |