US2665579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic calibrating apparatus
Assignee: ETAVEX S A
•
Filing: 1950-02-14
•
Granted: 1954-01-12
•
Expires: 1970-02-14
Abstract
No abstract record available.
Inventors
- 👤 Fortier Andre Louis Aime
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:19
CPC Classifications
G; G01; G01B; G01B13/00; G01B13/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49462; Y10T29/49464; Y10T409/00; Y10T409/30; Y10T409/30084
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1971271A
Cited
GB388265A
Cited
US2263335A
Cited
US2295399A
Cited
US2390252A
Cited
US2589251A
Cited
US2448653A
Cited
US2516932A
Cited
US2571557A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-11 | 1957-07-13 | 1958-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-11 | 1961-07-13 | 1962-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-11 | 1965-07-13 | 1966-01-12 | $7700.00 | Window Closed / Lapsed |