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US2581359A
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Electromagnetic pressure sensitive device
Assignee: Individual
•
Filing: 1947-03-21
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Granted: 1952-01-08
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Expires: 1967-03-21
Abstract
No abstract record available.
Inventors
- 👤 Clark James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:45
CPC Classifications
G; G01; G01D; G01D5/00; G01D5/12; G01D5/14; G01D5/20; G01L; G01L9/00; G01L9/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1718494A
Cited
US1560951A
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US2178471A
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US2445455A
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US2448322A
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US2376156A
Cited
US2440605A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-07 | 1955-07-09 | 1956-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-07 | 1959-07-09 | 1960-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-07 | 1963-07-09 | 1964-01-08 | $7700.00 | Window Closed / Lapsed |