US2814765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oscillating code transmitter
Assignee: SPX Technologies Inc
•
Filing: 1953-04-22
•
Granted: 1957-11-26
•
Expires: 1973-04-22
Abstract
No abstract record available.
Inventors
- 👤 Marcian A Scheg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:43
CPC Classifications
H; H01; H01H; H01H51/00; H01H51/30; H01H51/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE244910C
Cited
GB191228320A
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US1114225A
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US1737761A
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US1858876A
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US2268261A
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US2351588A
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US2559448A
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US2635155A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-25 | 1961-05-27 | 1961-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-25 | 1965-05-27 | 1965-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-25 | 1969-05-27 | 1969-11-26 | $7700.00 | Window Closed / Lapsed |