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Patent US2505601A successfully refreshed from Google Patents.
US2505601A
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Apparatus for calibrating vibration equipment
Assignee: Glenn L Martin Co
•
Filing: 1945-07-31
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Granted: 1950-04-25
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Expires: 1965-07-31
Abstract
No abstract record available.
Inventors
- 👤 Jr Welcome W Bender
- 👤 William B Bergen
- 👤 William G Purdy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:11
CPC Classifications
G; G01; G01M; G01M7/00; G01M7/02; G01M7/025; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18248; Y10T74/18256
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB225771A
Cited
US1560435A
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US1336322A
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US1661323A
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US1803458A
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US1868498A
Cited
US2398520A
Cited
US2288963A
Cited
US2422933A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-04-24 | 1953-10-24 | 1954-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-24 | 1957-10-24 | 1958-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-24 | 1961-10-24 | 1962-04-25 | $7700.00 | Window Closed / Lapsed |