US3422326A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulse width modulated servo amplifier
Assignee: United States Department of the Army
•
Filing: 1965-09-07
•
Granted: 1969-01-14
•
Expires: 1985-09-07
Abstract
No abstract record available.
Inventors
- 👤 Harold V White
- 👤 Herbert R Mccarley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:57
CPC Classifications
G; G05; G05D; G05D3/00; G05D3/12; G05D3/14; G05D3/18; G01; G01C; G01C19/00; G01C19/02; G01C19/04; G01C19/28; H; H03; H03F; H03F3/00; H03F3/20; H03F3/21; H03F3/217; H03F3/2173
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3260912A
Cited
US3354366A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-14 | 1972-07-15 | 1973-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-14 | 1976-07-15 | 1977-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-14 | 1980-07-15 | 1981-01-14 | $7700.00 | Window Closed / Lapsed |