Patent US3856188A successfully refreshed from Google Patents.
US3535950A
Expired / Lapsed
US
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Exposed speed change mechanism for a bicycle
Assignee: Shimano Inc
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Filing: 1968-11-01
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Granted: 1970-10-27
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Expires: 1988-11-01
Abstract
No abstract record available.
Inventors
- 👤 Keizo Shimano
- 👤 Masayoshi Kine
- 👤 Takuo Ishida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:35
CPC Classifications
B; B62; B62M; B62M9/00; B62M9/04; B62M9/06; B62M9/10; B62M9/12; B62M9/121; B62M9/124; B62M9/1242; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20012; Y10T74/20018; Y10T74/20037; Y10T74/20043; Y10T74/20396; Y10T74/20402; Y10T74/2042; Y10T74/20438
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) | 1973-10-26 | 1974-04-27 | 1974-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-26 | 1978-04-27 | 1978-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-26 | 1982-04-27 | 1982-10-27 | $7700.00 | Window Closed / Lapsed |