US2536892A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reproducer stylus tracking device
Assignee: RCA Corp
•
Filing: 1944-12-30
•
Granted: 1951-01-02
•
Expires: 1964-12-30
Abstract
No abstract record available.
Inventors
- 👤 Chester M Sinnett
- 👤 Belar Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:58
CPC Classifications
G; G11; G11B; G11B3/00; G11B3/02; G11B3/10; G11B3/12; G11B3/121; G11B3/122; G11B3/34; G11B3/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1780669A
Cited
US1785047A
Cited
US2126910A
Cited
US2334510A
Cited
US2400953A
Cited
US2446390A
Cited
US2423617A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-01 | 1954-07-03 | 1955-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-01 | 1958-07-03 | 1959-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-01 | 1962-07-03 | 1963-01-02 | $7700.00 | Window Closed / Lapsed |