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
2026-11-04 08:09
CPC Classifications
G; G01; G01B; G01B5/00; G01B5/26; A; A61; A61B; A61B90/00; A61B90/06; A61B2090/061
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1790572A
Cited
US1232290A
Cited
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 |