US3017834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic detecting device
Assignee: Individual
•
Filing: 1943-08-28
•
Granted: 1962-01-23
•
Expires: 1963-08-28
Abstract
No abstract record available.
Inventors
- 👤 Robert H Park
- 👤 Wilson R Maltby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:05
CPC Classifications
F; F42; F42B; F42B22/00; F42B22/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US542732A
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US1275292A
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US1442512A
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US2016977A
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US1961782A
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FR803907A
Cited
US2123045A
Cited
US2252059A
Cited
US2400549A
Cited
US2418553A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-22 | 1965-07-24 | 1966-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-22 | 1969-07-24 | 1970-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-22 | 1973-07-24 | 1974-01-23 | $7700.00 | Window Closed / Lapsed |