US2608090A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Testing machine for ball bearings
Assignee: Individual
•
Filing: 1948-07-29
•
Granted: 1952-08-26
•
Expires: 1968-07-29
Abstract
No abstract record available.
Inventors
- 👤 Virgil D Barker
- 👤 Clough D Hudson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:15
CPC Classifications
G; G01; G01M; G01M13/00; G01M13/04; G01M13/045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US97640A
Cited
DE645132C
Cited
US1133687A
Cited
US1992453A
Cited
US2009997A
Cited
US2211779A
Cited
US2364229A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-26 | 1956-02-25 | 1956-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-26 | 1960-02-25 | 1960-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-26 | 1964-02-25 | 1964-08-26 | $7700.00 | Window Closed / Lapsed |