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US2422374A
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Assignee: Individual
•
Filing: 1943-02-16
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Granted: 1947-06-17
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Expires: 1963-02-16
Abstract
No abstract record available.
Inventors
- 👤 Frank C Strebe
- 👤 William L Comyns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:56
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/06; H04B1/10; H04B1/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1476691A
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US1692877A
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GB183416A
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US1716573A
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US1748277A
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US1746829A
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US1733414A
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US1821906A
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US2031607A
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US2000142A
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US2032117A
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FR791121A
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US2227415A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-06-16 | 1950-12-16 | 1951-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-06-16 | 1954-12-16 | 1955-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-06-16 | 1958-12-16 | 1959-06-17 | $7700.00 | Window Closed / Lapsed |