US3052827A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic discriminator
Assignee: Individual
•
Filing: 1955-02-07
•
Granted: 1962-09-04
•
Expires: 1975-02-07
Abstract
No abstract record available.
Inventors
- 👤 David E Olsen
- 👤 Lawson E Richtmyer
- 👤 Charles A Wilson
- 👤 George J Myers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:13
CPC Classifications
F; F42; F42C; F42C13/00; F42C13/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2728042A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-03 | 1966-03-05 | 1966-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-03 | 1970-03-05 | 1970-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-03 | 1974-03-05 | 1974-09-04 | $7700.00 | Window Closed / Lapsed |