US2999986A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of correcting non-linear distortion
Assignee: Individual
•
Filing: 1957-12-13
•
Granted: 1961-09-12
•
Expires: 1977-12-13
Abstract
No abstract record available.
Inventors
- 👤 Holbrook George William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:09
CPC Classifications
H; H03; H03F; H03F1/00; H03F1/32; H03F1/33
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2552588A
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US2730575A
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US2768352A
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US2776410A
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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) | 1964-09-11 | 1965-03-13 | 1965-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-11 | 1969-03-13 | 1969-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-11 | 1973-03-13 | 1973-09-12 | $7700.00 | Window Closed / Lapsed |