Patent US2497121A successfully refreshed from Google Patents.
US2497121A
Expired / Lapsed
US
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Bicycle construction
Assignee: FRANK P FLETCHER
•
Filing: 1944-06-19
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Granted: 1950-02-14
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Expires: 1964-06-19
Abstract
No abstract record available.
Inventors
- 👤 Frank P Fletcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:24
CPC Classifications
B; B62; B62K; B62K3/00; B62K3/02; B62K3/10; B62K25/00; B62K25/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US523115A
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US1580414A
Cited
GB241714A
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US1907645A
Cited
US2244709A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-13 | 1953-08-15 | 1954-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-13 | 1957-08-15 | 1958-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-13 | 1961-08-15 | 1962-02-14 | $7700.00 | Window Closed / Lapsed |