US2675222A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic magnetic analytical balance
Assignee: Collins Radio Co
•
Filing: 1947-09-11
•
Granted: 1954-04-13
•
Expires: 1967-09-11
Abstract
No abstract record available.
Inventors
- 👤 John W Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:06
CPC Classifications
G; G01; G01G; G01G7/00; G01G7/02; G01G7/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1826024A
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US1953819A
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US2141175A
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US2081367A
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US2136219A
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US2360751A
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US2371040A
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US2415174A
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US2415175A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-12 | 1957-10-12 | 1958-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-12 | 1961-10-12 | 1962-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-12 | 1965-10-12 | 1966-04-13 | $7700.00 | Window Closed / Lapsed |