US2997308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Convertible boy-girl bikes
Assignee: Hedstrom Union Co
•
Filing: 1958-09-05
•
Granted: 1961-08-22
•
Expires: 1978-09-05
Abstract
No abstract record available.
Inventors
- 👤 Alban M Boudreau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:35
CPC Classifications
B; B62; B62K; B62K13/00; B62K19/00; B62K19/18; B62K19/24
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1279081A
Cited
FR615499A
Cited
US1744417A
Cited
US1812967A
Cited
US2804310A
Cited
US2850306A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-21 | 1965-02-20 | 1965-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-21 | 1969-02-20 | 1969-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-21 | 1973-02-20 | 1973-08-22 | $7700.00 | Window Closed / Lapsed |