Patent US3030709A successfully refreshed from Google Patents.
US3030709A
Expired / Lapsed
US
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Bore concentricity gauge
Assignee: Individual
•
Filing: 1960-01-11
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Granted: 1962-04-24
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Expires: 1980-01-11
Abstract
No abstract record available.
Inventors
- 👤 Eisele Andrew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:01
CPC Classifications
G; G01; G01B; G01B5/00; G01B5/24; G01B5/25; G01B5/252
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-23 | 1965-10-23 | 1966-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-23 | 1969-10-23 | 1970-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-23 | 1973-10-23 | 1974-04-24 | $7700.00 | Window Closed / Lapsed |