US3049677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulsing circuit using punch-through transistor
Assignee: US Philips Corp
•
Filing: 1956-06-25
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Granted: 1962-08-14
•
Expires: 1976-06-25
Abstract
No abstract record available.
Inventors
- 👤 Wolfendale Eric
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:27
CPC Classifications
H; H03; H03K; H03K5/00; H03K5/01; H03K3/00; H03K3/02; H03K3/335
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2750509A
Cited
US2644896A
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US2663800A
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US2790034A
Cited
US2751545A
Cited
US2871376A
Cited
US2818558A
Cited
US2797327A
Cited
US2927222A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-13 | 1966-02-12 | 1966-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-13 | 1970-02-12 | 1970-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-13 | 1974-02-12 | 1974-08-14 | $7700.00 | Window Closed / Lapsed |