Patent US3226798A successfully refreshed from Google Patents.
US3226798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel diffused base transistor device and method of making same
Assignee: Texas Instruments Inc
•
Filing: 1960-04-13
•
Granted: 1966-01-04
•
Expires: 1980-04-13
Abstract
No abstract record available.
Inventors
- 👤 Jr Elmer A Wolff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:18
CPC Classifications
H; H10; H10D; H10D99/00; H10D10/00; H10P; H10P95/00; Y; Y10; Y10S; Y10S438/00; Y10S438/977
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2846346A
Cited
US2843809A
Cited
US2885609A
Cited
US2947923A
Cited
US3061766A
Cited
US2983633A
Cited
US2947914A
Cited
US2999964A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |