US3067294A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recording and playback head for magnetic sound recorders
Assignee: Gebrueder Steidinger GmbH
•
Filing: 1958-09-02
•
Granted: 1962-12-04
•
Expires: 1978-09-02
Abstract
No abstract record available.
Inventors
- 👤 Siegemund Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:09
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/127; G11B5/187; G11B5/245; G11B5/17
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2360625A
Cited
US2475421A
Cited
US2885489A
Cited
US2850581A
Cited
FR1121583A
Cited
US2831180A
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 |