US2486095A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power drive attachment for bicycles
Assignee: Briggs and Stratton Corp
•
Filing: 1946-03-30
•
Granted: 1949-10-25
•
Expires: 1966-03-30
Abstract
No abstract record available.
Inventors
- 👤 Werner E Armstrong
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:48
CPC Classifications
B; B62; B62M; B62M7/00; B62M7/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
GB190123575A
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US860251A
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US1203927A
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US1212982A
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US1179138A
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US1217602A
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US1377948A
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US1485935A
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US1692593A
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US1780034A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-24 | 1953-04-25 | 1953-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-24 | 1957-04-25 | 1957-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-24 | 1961-04-25 | 1961-10-25 | $7700.00 | Window Closed / Lapsed |