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US2684534A
Expired / Lapsed
US
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Measuring device
Assignee: Individual
•
Filing: 1951-04-27
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Granted: 1954-07-27
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Expires: 1971-04-27
Abstract
No abstract record available.
Inventors
- 👤 Ljungberg Ture Anders
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:33
CPC Classifications
G; G01; G01B; G01B3/00; G01B3/10; G01B3/1005; G01B3/1007; G01B2003/1015; G01B3/1041; G01B2003/1051
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US531047A
Cited
GB113424A
Cited
US2022756A
Cited
US2142387A
Cited
US2132202A
Cited
US2503440A
Cited
US2575354A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-07-26 | 1958-01-25 | 1958-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-26 | 1962-01-25 | 1962-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-26 | 1966-01-25 | 1966-07-27 | $7700.00 | Window Closed / Lapsed |