US2802182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Current density responsive apparatus
Assignee: Fox Products Co
•
Filing: 1954-02-01
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Granted: 1957-08-06
•
Expires: 1974-02-01
Abstract
No abstract record available.
Inventors
- 👤 James B Godshalk
- 👤 Lewis A Medlar
- 👤 William G Keck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:09
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/02; G01N27/04; G01N27/06; G01R; G01R19/00; G01R19/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1735878A
Cited
US2542057A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-05 | 1961-02-04 | 1961-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-05 | 1965-02-04 | 1965-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-05 | 1969-02-04 | 1969-08-06 | $7700.00 | Window Closed / Lapsed |