Patent US2887902A successfully refreshed from Google Patents.
US2887902A
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Bob weight for balance testing of counterbalanced crankshaft
Assignee: Bear Manufacturing Co
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Filing: 1958-01-10
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Granted: 1959-05-26
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Expires: 1978-01-10
Abstract
No abstract record available.
Inventors
- 👤 Charles W Macmillan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:47
CPC Classifications
G; G01; G01M; G01M1/00; G01M1/02; G01M1/04; F; F16; F16B; F16B2200/00; F16B2200/50; F16B2200/503; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2142; Y10T74/2154; Y10T74/2156; Y10T74/2173; Y10T74/2183
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) | 1962-05-25 | 1962-11-24 | 1963-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-25 | 1966-11-24 | 1967-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-25 | 1970-11-24 | 1971-05-26 | $7700.00 | Window Closed / Lapsed |