Patent US3402942A successfully refreshed from Google Patents.
US3402942A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for tensioning the driving chain in a bicycle equipped with coaster brake and exposed speed change gear
Assignee: Shimano Inc
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Filing: 1967-06-12
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Granted: 1968-09-24
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Expires: 1987-06-12
Abstract
No abstract record available.
Inventors
- 👤 Shimano Keizo
- 👤 Nagano Masashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:30
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)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-24 | 1972-03-25 | 1972-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-24 | 1976-03-25 | 1976-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-24 | 1980-03-25 | 1980-09-24 | $7700.00 | Window Closed / Lapsed |