US3376568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transistor switching circuit
Assignee: Motors Liquidation Co
•
Filing: 1964-09-29
•
Granted: 1968-04-02
•
Expires: 1984-09-29
Abstract
No abstract record available.
Inventors
- 👤 John A Stewart
- 👤 John R Ziegler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:22
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/08; H03K17/081; H03K17/0814; H03K17/08146
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2828450A
Cited
GB864293A
Cited
US3014159A
Cited
US3240989A
Cited
US3263119A
Cited
US3255441A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-02 | 1971-10-02 | 1972-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-02 | 1975-10-02 | 1976-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-02 | 1979-10-02 | 1980-04-02 | $7700.00 | Window Closed / Lapsed |