US3240500A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangement in sound-recording apparatus
Assignee: Svenska AB Gasaccumulator
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Filing: 1962-03-01
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Granted: 1966-03-15
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Expires: 1982-03-01
Abstract
No abstract record available.
Inventors
- 👤 Beer Palle-Finn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:02
CPC Classifications
G; G11; G11B; G11B17/00; G11B17/34; G11B19/00; G11B19/20; G11B19/2009; G11B3/00; G11B3/02; G11B3/10; G11B3/34; G11B3/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
IN A SOUND TRANSDUCER, A RECIPROCABLE CARRIAGE FOR CARRYING A ROTATABLE DISC, SAID CARRIAGE BEING OF INVERTED CHANNEL-SHAPED CROSS-SECTION; A CASE OF COMPLEMENTARY CROSS-SECTIONAL SHAPE DISPOSED WITHIN SAID RECIPROCABLE CARRIAGE; BALL BEARING RACES FORMED IN THE CORNERS OF SAID CASE WHERE THE SIDE WALLS THEREOF INTERSECT THE TOP SURFACE THEREOF; AND BALLS IN SAID RACES CONTACTING THE INTERNAL SURFACES OF THE SIDE AND TOP WALLS OF THE RECIPROCABLE CARRIAGE, WHEREBY SAID CARRIAGE IS RECIPROCABLE RELATIVE TO SAID CASE.
Claim 2
Dependent Claim
78 words
IN A SOUND TRANSDUCER, A RECIPROCABLE CARRIAGE FOR CARRYING A ROTATABLE DISC, SAID CARRIAGE BEING OF INVERTED CHANNEL-SHAPED CROSS-SECTION; A CASE OF COMPLEMENTARY CROSS-SECTIONAL SHAPE DISPOSED WITHIN SAID RECIPROCABLE CARRIAGE; BALL BEARING RACES FORMED IN THE CORNERS OF SAID CASE WHERE THE SIDE WALLS THEREOF INTERSECT THE TOP SURFACE THEREOF; AND BALLS IN SAID RACES CONTACTING THE INTERNAL SURFACES OF THE SIDE AND TOP WALLS OF THE RECIPROCABLE CARRIAGE, WHEREBY SAID CARRIAGE IS RECIPROCABLE RELATIVE TO SAID CASE.
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) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |