US3008090A
Expired / Lapsed
US
⏱️ 0.0 years remaining
D. c. amplifier
Assignee: Texas Instruments Inc
•
Filing: 1958-07-03
•
Granted: 1961-11-07
•
Expires: 1978-07-03
Abstract
No abstract record available.
Inventors
- 👤 Edwin G Millis
- 👤 Robert A Shearer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:54
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/38; H03F3/387
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA527042A
Cited
US2524165A
Cited
US2886657A
Cited
US2795653A
Cited
US2810110A
Cited
US2751501A
Cited
US2846652A
Cited
US2851604A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-11-06 | 1965-05-08 | 1965-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-06 | 1969-05-08 | 1969-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-06 | 1973-05-08 | 1973-11-07 | $7700.00 | Window Closed / Lapsed |