US2939018A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transistor trigger circuit
Assignee: General Telephone Laboratories Inc
•
Filing: 1955-12-09
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Granted: 1960-05-31
•
Expires: 1975-12-09
Abstract
No abstract record available.
Inventors
- 👤 Alfred H Faulkner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:42
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/26; H03K3/28; H03K3/281; H03K3/286; H03K3/2893; G; G01; G01R; G01R19/00; G01R19/165; G01R19/16533; G01R19/16538; G05; G05F; G05F1/00; G05F1/10; G05F1/46; G05F1/62; H02; H02H; H02H3/00; H02H3/20; H02H3/202
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2665845A
Cited
US2751545A
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US2759142A
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US2828450A
Cited
US2838657A
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US2776382A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-31 | 1963-11-30 | 1964-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-31 | 1967-11-30 | 1968-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-31 | 1971-11-30 | 1972-05-31 | $7700.00 | Window Closed / Lapsed |