Patent US167497A successfully refreshed from Google Patents.
US2655052A
Expired / Lapsed
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Impulse switch silencer
Assignee: Telephonics Corp
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Filing: 1950-07-29
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Granted: 1953-10-13
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Expires: 1970-07-29
Abstract
No abstract record available.
Inventors
- 👤 George J Montalto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:39
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/26; H04M1/30; H04M1/31; F; F16; F16D; F16D41/00; F16D41/12; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1526; Y10T74/21; Y10T74/2133; Y10T74/2135
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) | 1956-10-12 | 1957-04-13 | 1957-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-12 | 1961-04-13 | 1961-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-12 | 1965-04-13 | 1965-10-13 | $7700.00 | Window Closed / Lapsed |