US3067337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Servo amplifier using push-pull, complementary, cascaded, transistors with means to superimpose a higher a. c. frequency on information signal
Assignee: Milacron Inc
•
Filing: 1957-06-03
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Granted: 1962-12-04
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Expires: 1977-06-03
Abstract
No abstract record available.
Inventors
- 👤 Charles J Bowman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:44
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/38; H03F3/387; G; G05; G05D; G05D3/00; G05D3/12; G05D3/14; G05D3/1418; H03F3/30; H03F3/3066
Claims Analysis
Total Claims: 0
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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) | 1965-12-03 | 1966-06-04 | 1966-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-03 | 1970-06-04 | 1970-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-03 | 1974-06-04 | 1974-12-04 | $7700.00 | Window Closed / Lapsed |