Patent US1656110A successfully refreshed from Google Patents.
Patent US3427410A successfully refreshed from Google Patents.
US3427410A
Expired / Lapsed
US
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Electromechanical transducer
Assignee: Bosch Security Systems Inc
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Filing: 1964-10-08
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Granted: 1969-02-11
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Expires: 1984-10-08
Abstract
No abstract record available.
Inventors
- 👤 Howard Diamond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:13
CPC Classifications
H; H04; H04R; H04R23/00; H04R23/006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-11 | 1972-08-12 | 1973-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-11 | 1976-08-12 | 1977-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-11 | 1980-08-12 | 1981-02-11 | $7700.00 | Window Closed / Lapsed |