US2566443A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Measuring instrument of the recording type
Assignee: Individual
•
Filing: 1949-09-21
•
Granted: 1951-09-04
•
Expires: 1969-09-21
Abstract
No abstract record available.
Inventors
- 👤 Elmqvist Rune
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:13
CPC Classifications
G; G01; G01R; G01R13/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1819264A
Cited
US1941001A
Cited
US1841452A
Cited
US2100204A
Cited
US2139508A
Cited
US2384515A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-03 | 1955-03-05 | 1955-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-03 | 1959-03-05 | 1959-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-03 | 1963-03-05 | 1963-09-04 | $7700.00 | Window Closed / Lapsed |