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US2702354A
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Assignee: Astatic Corp
•
Filing: 1952-02-28
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Granted: 1955-02-15
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Expires: 1972-02-28
Abstract
No abstract record available.
Inventors
- 👤 Creed M Chorpening
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:49
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/46; H04R17/00; H04R17/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1966446A
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US2121779A
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US2193945A
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US2175021A
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US2289183A
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US2344037A
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US2365738A
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US2399513A
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US2383832A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-02-14 | 1958-08-16 | 1959-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-02-14 | 1962-08-16 | 1963-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-02-14 | 1966-08-16 | 1967-02-15 | $7700.00 | Window Closed / Lapsed |