US3067295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stereophonic phonograph pick-up device
Assignee: Pickering and Co Inc
•
Filing: 1958-08-04
•
Granted: 1962-12-04
•
Expires: 1978-08-04
Abstract
No abstract record available.
Inventors
- 👤 Walter O Stanton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:38
CPC Classifications
H; H04; H04R; H04R11/00; H04R11/08; H04R11/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2093540A
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US2114471A
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US2416082A
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US2554696A
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US2622156A
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US2678412A
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US2875282A
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US2917590A
Cited
US2844767A
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US2864897A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-03 | 1966-06-04 | 1966-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-03 | 1970-06-04 | 1970-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-03 | 1974-06-04 | 1974-12-04 | $7700.00 | Window Closed / Lapsed |