US2542030A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetically supported indicating bore gauge
Assignee: Individual
•
Filing: 1945-04-16
•
Granted: 1951-02-20
•
Expires: 1965-04-16
Abstract
No abstract record available.
Inventors
- 👤 Otto F Hoppe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:24
CPC Classifications
G; G01; G01B; G01B5/00; G01B5/08; G01B5/12; Y; Y10; Y10S; Y10S33/00; Y10S33/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1591258A
Cited
US1625766A
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US1619771A
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US1888454A
Cited
US1895643A
Cited
US1778481A
Cited
US1966984A
Cited
US2088362A
Cited
US2322033A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-19 | 1954-08-21 | 1955-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-19 | 1958-08-21 | 1959-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-19 | 1962-08-21 | 1963-02-20 | $7700.00 | Window Closed / Lapsed |