US2866857A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phonograph pickup
Assignee: RCA Corp
•
Filing: 1955-12-20
•
Granted: 1958-12-30
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Expires: 1975-12-20
Abstract
No abstract record available.
Inventors
- 👤 Dallas R Andrews
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:02
CPC Classifications
H; H03; H03F; H03F15/00; H04; H04R; H04R23/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2640170A
Cited
US2553491A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-29 | 1962-06-30 | 1962-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-29 | 1966-06-30 | 1966-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-29 | 1970-06-30 | 1970-12-30 | $7700.00 | Window Closed / Lapsed |