US3383752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing styluses for reproducing phonograph records
Assignee: Toshiba Corp
•
Filing: 1965-09-17
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Granted: 1968-05-21
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Expires: 1985-09-17
Abstract
No abstract record available.
Inventors
- 👤 Hukao Yoshiro
- 👤 Higashinakagawa Emiko
- 👤 Tsujii Hayashi
- 👤 Yazawa Kiyohiro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:24
CPC Classifications
B; B28; B28D; B28D5/00; G; G11; G11B; G11B3/00; G11B3/44; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4957; Y10T29/49577; Y10T29/49764; Y10T83/00; Y10T83/02; Y10T83/0304
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2173763A
Cited
US2557350A
Cited
US2614274A
Cited
US2865238A
Cited
US2960750A
Cited
US3143793A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-21 | 1971-11-20 | 1972-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-21 | 1975-11-20 | 1976-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-21 | 1979-11-20 | 1980-05-21 | $7700.00 | Window Closed / Lapsed |