US2562575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic device for measuring physical constants
Assignee: Emhart Manufacturing Co
•
Filing: 1947-01-04
•
Granted: 1951-07-31
•
Expires: 1967-01-04
Abstract
No abstract record available.
Inventors
- 👤 John L Raesler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:30
CPC Classifications
G; G01; G01B; G01B7/00; G01B7/02; G01B7/06; G01B7/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2458760A
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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) | 1954-07-30 | 1955-01-29 | 1955-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-30 | 1959-01-29 | 1959-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-30 | 1963-01-29 | 1963-07-31 | $7700.00 | Window Closed / Lapsed |