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US2993202A
Expired / Lapsed
US
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Assignee: Individual
•
Filing: 1959-06-22
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Granted: 1961-07-18
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Expires: 1979-06-22
Abstract
No abstract record available.
Inventors
- 👤 Carl A Halonen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:02
CPC Classifications
H; H03; H03M; H03M1/00; H03M1/66; H03M1/74; H03M1/742; H03M1/745
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR1072063A
Cited
US2869115A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-17 | 1965-01-16 | 1965-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-17 | 1969-01-16 | 1969-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-17 | 1973-01-16 | 1973-07-18 | $7700.00 | Window Closed / Lapsed |