Patent US3027554A successfully refreshed from Google Patents.
US3027554A
Expired / Lapsed
US
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Contactless direct current vibrating bell and motor mechanism
Assignee: REEVE ELECTRICAL CO Inc
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Filing: 1958-03-05
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Granted: 1962-03-27
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Expires: 1978-03-05
Abstract
No abstract record available.
Inventors
- 👤 Joseph L Cassell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:10
CPC Classifications
G; G10; G10K; G10K1/00; G10K1/06; G10K1/062; G10K1/063; G10K1/064
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US462381A
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US1839342A
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US2152300A
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US2126433A
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US2304095A
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US2325081A
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US2573076A
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US2759179A
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US2820913A
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US2908829A
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US2910689A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-26 | 1965-09-25 | 1966-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-26 | 1969-09-25 | 1970-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-26 | 1973-09-25 | 1974-03-27 | $7700.00 | Window Closed / Lapsed |