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Patent US2744407A successfully refreshed from Google Patents.
US2744407A
Expired / Lapsed
US
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Injector testing device
Assignee: —
•
Filing: —
•
Granted: 1956-05-08
•
Expires: 1973-05-08
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:04
CPC Classifications
F; F02; F02M; F02M65/00; F02M65/001; F02M65/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2517766A
Cited
US1017704A
Cited
US1572158A
Cited
US2263803A
Cited
US2629255A
Cited
US2689475A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-08 | 1959-11-07 | 1960-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-08 | 1963-11-07 | 1964-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-08 | 1967-11-07 | 1968-05-08 | $7700.00 | Window Closed / Lapsed |