US3046487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differential transistor amplifier
Assignee: Texas Instruments Inc
•
Filing: 1958-03-21
•
Granted: 1962-07-24
•
Expires: 1978-03-21
Abstract
No abstract record available.
Inventors
- 👤 Walter T Matzen
- 👤 James R Biard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:01
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/26; H03F3/45; H03F3/45071; H03F3/45076; H03F3/4508; H03F3/45085; H03F3/45479; H03F3/45484; H03F3/45488; H03F3/45493; H03F3/45502; H03F3/45547; H03F3/45551; H03F3/4556; H03F2203/00; H03F2203/45; H03F2203/45406; H03F2203/45446; H03F2203/45686; H03F2203/45702
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2802071A
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US2761917A
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US2810071A
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US2941153A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-23 | 1966-01-22 | 1966-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-23 | 1970-01-22 | 1970-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-23 | 1974-01-22 | 1974-07-24 | $7700.00 | Window Closed / Lapsed |