Patent US2578682A successfully refreshed from Google Patents.
US2578682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hobbyhorse attachment for bicycles and tricycles
Assignee: Individual
•
Filing: 1950-09-25
•
Granted: 1951-12-18
•
Expires: 1970-09-25
Abstract
No abstract record available.
Inventors
- 👤 Raymond G I Fernstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:55
CPC Classifications
B; B62; B62K; B62K9/00; B62K9/02; A; A63; A63G; A63G17/00; A63H; A63H5/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US507851A
Cited
US569158A
Cited
US597829A
Cited
US650895A
Cited
US692383A
Cited
US1302335A
Cited
US1372351A
Cited
US1414950A
Cited
FR615397A
Cited
US2107506A
Cited
US2436886A
Cited
US2509805A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-17 | 1955-06-18 | 1955-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-17 | 1959-06-18 | 1959-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-17 | 1963-06-18 | 1963-12-18 | $7700.00 | Window Closed / Lapsed |