Patent US3281150A successfully refreshed from Google Patents.
US3281150A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Track selector for phonograph pick-up
Assignee: SPEAR AND WILKINS
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Filing: 1963-10-18
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Granted: 1966-10-25
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Expires: 1983-10-18
Abstract
No abstract record available.
Inventors
- 👤 Daniel C Wilkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:34
CPC Classifications
G; G11; G11B; G11B3/00; G11B3/02; G11B3/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A DEVICE FOR FACILITATING THE POSITIONING OF A PHONOGRAPH PICK-UP NEEDLE IN A PHONOGRAPH RECORD TRACK COMPRISING: AN ATTACHMENT FOR A TONE ARM OF A PHONOGRAPH; SAID DEVICE INCLUDING THE VISIBLE INDICATING POINTER; SAID POINTER BEING IN EXACT ALIGNMENT WITH THE PICK-UP NEEDLE OF THE TONE ARM WHEREBY ALIGNMENT OF SAID POINTER WITH THE DESIRED TRACK AUTOMATICALLY ALIGNS SAID PICK-UP NEEDLE; SAID ATTACHMENT INCLUDING A TRANSPARENT WINDOW ON WHICH SAID INDICATING POINTER IS CARRIED.
Claim 2
Independent Claim
74 words
A DEVICE FOR FACILITATING THE POSITIONING OF A PHONOGRAPH PICK-UP NEEDLE IN A PHONOGRAPH RECORD TRACK COMPRISING: AN ATTACHMENT FOR A TONE ARM OF A PHONOGRAPH; SAID DEVICE INCLUDING THE VISIBLE INDICATING POINTER; SAID POINTER BEING IN EXACT ALIGNMENT WITH THE PICK-UP NEEDLE OF THE TONE ARM WHEREBY ALIGNMENT OF SAID POINTER WITH THE DESIRED TRACK AUTOMATICALLY ALIGNS SAID PICK-UP NEEDLE; SAID ATTACHMENT INCLUDING A TRANSPARENT WINDOW ON WHICH SAID INDICATING POINTER IS CARRIED.
References Cited (Backward Citations)
CH355622A
Cited
US3183004A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |