US2818726A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic calibrating system for pressure transducers
Assignee: Individual
•
Filing: 1955-10-17
•
Granted: 1958-01-07
•
Expires: 1975-10-17
Abstract
No abstract record available.
Inventors
- 👤 Edward L Amonette
- 👤 George W Rodgers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:55
CPC Classifications
G; G01; G01L; G01L27/00; G01L27/002; G01L27/005; Y; Y10; Y10S; Y10S73/00; Y10S73/11
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) | 1961-01-06 | 1961-07-08 | 1962-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-06 | 1965-07-08 | 1966-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-06 | 1969-07-08 | 1970-01-07 | $7700.00 | Window Closed / Lapsed |