US2472214A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure responsive electrical resistor
Assignee: Individual
•
Filing: 1947-10-22
•
Granted: 1949-06-07
•
Expires: 1967-10-22
Abstract
No abstract record available.
Inventors
- 👤 Hurvitz Hyman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:42
CPC Classifications
G; G01; G01L; G01L9/00; G01L9/0001; G01L9/0002; H; H01; H01C; H01C10/00; H01C10/10; H01C10/106
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-06 | 1952-12-06 | 1953-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-06 | 1956-12-06 | 1957-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-06 | 1960-12-06 | 1961-06-07 | $7700.00 | Window Closed / Lapsed |