US2885488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic record transducer
Assignee: RCA Corp
•
Filing: 1952-09-30
•
Granted: 1959-05-05
•
Expires: 1972-09-30
Abstract
No abstract record available.
Inventors
- 👤 Dallas R Andrews
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:57
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/127; G11B5/265
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE693664C
Cited
US2195192A
Cited
US2354176A
Cited
US2536810A
Cited
US2484568A
Cited
US2649506A
Cited
US2530562A
Cited
US2618709A
Cited
US2638507A
Cited
US2763729A
Cited
US2769036A
Cited
US2785232A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-04 | 1962-11-03 | 1963-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-04 | 1966-11-03 | 1967-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-04 | 1970-11-03 | 1971-05-05 | $7700.00 | Window Closed / Lapsed |