US3061793A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transistor amplifier
Assignee: US Philips Corp
•
Filing: 1958-03-13
•
Granted: 1962-10-30
•
Expires: 1978-03-13
Abstract
No abstract record available.
Inventors
- 👤 Verkruissen Arie Ferdinand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:44
CPC Classifications
H; H03; H03K; H03K5/00; H03K5/01; H03K5/02; H04; H04N; H04N5/00; H04N5/14; H04N5/16; H04N5/165
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2144995A
Cited
US2675423A
Cited
US2731567A
Cited
US2844647A
Cited
US2698416A
Cited
US2860196A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-29 | 1966-04-30 | 1966-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-29 | 1970-04-30 | 1970-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-29 | 1974-04-30 | 1974-10-30 | $7700.00 | Window Closed / Lapsed |