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US2557428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Instrument for determining dis
Assignee: —
•
Filing: —
•
Granted: 1951-06-19
•
Expires: 1968-06-19
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:47
CPC Classifications
G; G01; G01B; G01B5/00; G01B5/26; A; A61; A61B; A61B90/00; A61B90/06; A61B2090/061
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1790572A
Cited
US1232290A
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US1122429A
Cited
US1245304A
Cited
US1390027A
Cited
US1528944A
Cited
US1907873A
Cited
US2118773A
Cited
US2193280A
Cited
US2485674A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-18 | 1954-12-18 | 1955-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-18 | 1958-12-18 | 1959-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-18 | 1962-12-18 | 1963-06-19 | $7700.00 | Window Closed / Lapsed |