US3514675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semi-conductor elements for junction devices and the manufacture thereof
Assignee: Siemens Mobility Ltd
•
Filing: 1965-09-03
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Granted: 1970-05-26
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Expires: 1985-09-03
Abstract
No abstract record available.
Inventors
- 👤 Neil S Purdom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:10
CPC Classifications
H; H10; H10D; H10D62/00; H10D62/60; H10D18/00; H10D62/10; H10D62/13; H10D99/00; H10P; H10P32/00; H10P32/10; H10P32/16; H10P95/00; H10P95/50; Y; Y10; Y10S; Y10S438/00; Y10S438/914; Y10S438/917
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2813233A
Cited
US2964689A
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US2980832A
Cited
US3012175A
Cited
US3152024A
Cited
US3208889A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-25 | 1973-11-24 | 1974-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-25 | 1977-11-24 | 1978-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-25 | 1981-11-24 | 1982-05-26 | $7700.00 | Window Closed / Lapsed |