Patent US4483737B1 successfully refreshed from Google Patents.
Patent US2038027A successfully refreshed from Google Patents.
US2038027A
Expired / Lapsed
US
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Vibration damper for crank shafts
Assignee: Packard Motor Car Co
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Filing: 1931-11-10
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Granted: 1936-04-21
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Expires: 1951-11-10
Abstract
No abstract record available.
Inventors
- 👤 Herbert C Edwards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:44
CPC Classifications
F; F16; F16F; F16F15/00; F16F15/22; F16F15/26; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2173; Y10T74/2183; Y10T74/2184
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1939-04-21 | 1939-10-21 | 1940-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-04-21 | 1943-10-21 | 1944-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-04-21 | 1947-10-21 | 1948-04-21 | $7700.00 | Window Closed / Lapsed |