Patent US3422688A successfully refreshed from Google Patents.
US3422688A
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US
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Arrangement for counterbalancing the forces in crankshaft driven machines
Assignee: Bruderer AG
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Filing: 1966-12-02
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Granted: 1969-01-21
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Expires: 1986-12-02
Abstract
No abstract record available.
Inventors
- 👤 Egon Bruderer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:40
CPC Classifications
F; F16; F16F; F16F15/00; F16F15/22; F16F15/26; F16F15/261; B; B30; B30B; B30B15/00; B30B15/0064; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18208; Y10T74/21; Y10T74/2142; Y10T74/2154; Y10T74/2156
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) | 1972-01-21 | 1972-07-22 | 1973-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-21 | 1976-07-22 | 1977-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-21 | 1980-07-22 | 1981-01-21 | $7700.00 | Window Closed / Lapsed |