Patent US2605346A successfully refreshed from Google Patents.
US2605346A
Expired / Lapsed
US
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Waterproof microphone
Assignee: Individual
•
Filing: 1945-09-18
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Granted: 1952-07-29
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Expires: 1965-09-18
Abstract
No abstract record available.
Inventors
- 👤 Roland M Goglick
- 👤 Richard L Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:56
CPC Classifications
H; H04; H04R; H04R17/00; H04R17/02; B; B06; B06B; B06B1/00; B06B1/02; B06B1/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1658327A
Cited
US1002903A
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US2138036A
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US2222729A
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US2427348A
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US2433383A
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US2413462A
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US2402531A
Cited
US2427062A
Cited
US2420311A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-29 | 1956-01-28 | 1956-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-29 | 1960-01-28 | 1960-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-29 | 1964-01-28 | 1964-07-29 | $7700.00 | Window Closed / Lapsed |