US2983903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crystal vibrated reed and receiver and system of communication using same
Assignee: PHILIPPS ELECTRONICS Corp
•
Filing: 1956-11-13
•
Granted: 1961-05-09
•
Expires: 1976-11-13
Abstract
No abstract record available.
Inventors
- 👤 Louis E Philipps
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:28
CPC Classifications
B; B06; B06B; B06B1/00; B06B1/02; B06B1/06; B06B1/0603
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1461568A
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US1920655A
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US2105011A
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US2033631A
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US2185966A
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US2340798A
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US2387108A
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US2365738A
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US2388531A
Cited
US2714859A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-08 | 1964-11-07 | 1965-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-08 | 1968-11-07 | 1969-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-08 | 1972-11-07 | 1973-05-09 | $7700.00 | Window Closed / Lapsed |