US2848748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of securing permanent threedimensional patterns of magnetic fields
Assignee: Individual
•
Filing: 1956-02-28
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Granted: 1958-08-26
•
Expires: 1976-02-28
Abstract
No abstract record available.
Inventors
- 👤 Lloyd R Crump
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:23
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/58; B29C70/62; G; G01; G01R; G01R33/00; G01R33/02; G01R33/10; G09; G09B; G09B23/00; G09B23/06; G09B23/18; G09B23/181; B29K; B29K2995/00; B29K2995/0018; B29K2995/0026; Y; Y10; Y10S; Y10S425/00; Y10S425/033; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49075
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-25 | 1962-02-24 | 1962-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-25 | 1966-02-24 | 1966-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-25 | 1970-02-24 | 1970-08-26 | $7700.00 | Window Closed / Lapsed |