US2837704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Junction transistors
Assignee: —
•
Filing: —
•
Granted: 1958-06-03
•
Expires: 1975-06-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:43
CPC Classifications
H; H10; H10D; H10D48/00; H10D48/30; H10D48/32; H10D48/34; H10D48/345; H10D10/00; H10D62/00; H10D62/10; H10D62/60; H10D99/00; H10P; H10P50/00; H10P95/00; H10P95/50; H10W; H10W42/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2597028A
Cited
US2603693A
Cited
FR1080034A
Cited
US2764642A
Cited
US2705767A
Cited
BE527382A
Cited
US2792539A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-02 | 1961-12-02 | 1962-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-02 | 1965-12-02 | 1966-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-02 | 1969-12-02 | 1970-06-03 | $7700.00 | Window Closed / Lapsed |