US2869074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single-turn coil for metal detector
Assignee: General Electric Co
•
Filing: 1953-10-26
•
Granted: 1959-01-13
•
Expires: 1973-10-26
Abstract
No abstract record available.
Inventors
- 👤 Charles W Clapp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:50
CPC Classifications
G; G01; G01V; G01V3/00; G01V3/08; G01V3/10; G01V3/101
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE21003E
Cited
US1565519A
Cited
US1957222A
Cited
US2202884A
Cited
US2557994A
Cited
US2587631A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-12 | 1962-07-14 | 1963-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-12 | 1966-07-14 | 1967-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-12 | 1970-07-14 | 1971-01-13 | $7700.00 | Window Closed / Lapsed |