US2528534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for testing centrifugally actuated elements
Assignee: Individual
•
Filing: 1945-03-09
•
Granted: 1950-11-07
•
Expires: 1965-03-09
Abstract
No abstract record available.
Inventors
- 👤 Leo T Meister
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:32
CPC Classifications
F; F42; F42C; F42C21/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1611224A
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US1805192A
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US1984031A
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US1983388A
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US2162009A
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US2303424A
Cited
US2315287A
Cited
US2318856A
Cited
US2355092A
Cited
US2421036A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-06 | 1954-05-08 | 1954-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-06 | 1958-05-08 | 1958-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-06 | 1962-05-08 | 1962-11-07 | $7700.00 | Window Closed / Lapsed |