US2866013A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic record method and apparatus
Assignee: Individual
•
Filing: 1955-05-24
•
Granted: 1958-12-23
•
Expires: 1975-05-24
Abstract
No abstract record available.
Inventors
- 👤 Charles S Reis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:20
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/127; G11B5/33; G11B5/37; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49021; Y10T29/49032; Y10T29/49055
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2702316A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-22 | 1962-06-23 | 1962-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-22 | 1966-06-23 | 1966-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-22 | 1970-06-23 | 1970-12-23 | $7700.00 | Window Closed / Lapsed |