US3448628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for tensioning the driving chain in a bicycle equipped with coaster brake and exposed speed change mechanism
Assignee: Shimano Inc
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Filing: 1967-05-31
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Granted: 1969-06-10
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Expires: 1987-05-31
Abstract
No abstract record available.
Inventors
- 👤 Keizo Shimano
- 👤 Masashi Nagano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:34
CPC Classifications
B; B62; B62M; B62M9/00; B62M9/16; B62M9/04; B62M9/06; B62M9/10; B62M9/12; B62M9/121; B62M9/126
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) | 1972-06-09 | 1972-12-09 | 1973-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-09 | 1976-12-09 | 1977-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-09 | 1980-12-09 | 1981-06-10 | $7700.00 | Window Closed / Lapsed |