US2549757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reproducing device having link means for producing high compliance in the direction of the stylus drag
Assignee: Westinghouse Electric Corp
•
Filing: 1947-03-20
•
Granted: 1951-04-24
•
Expires: 1967-03-20
Abstract
No abstract record available.
Inventors
- 👤 Ray F Corbett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:30
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2469265A
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US2092884A
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US1977433A
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US2239717A
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US2294320A
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US2320427A
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US2348526A
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US2381861A
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US2388116A
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US2320416A
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US2451221A
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US2426061A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-23 | 1954-10-23 | 1955-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-23 | 1958-10-23 | 1959-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-23 | 1962-10-23 | 1963-04-24 | $7700.00 | Window Closed / Lapsed |