Patent US3501148A successfully refreshed from Google Patents.
US3501148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tennis racket handle
Assignee: Charger Corporation
•
Filing: 1968-02-28
•
Granted: 1970-03-17
•
Expires: 1988-02-28
Abstract
No abstract record available.
Inventors
- 👤 Maynard H Cheris
- 👤 Aloise A Bigos
- 👤 Dana W Mox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:31
CPC Classifications
A; A63; A63B; A63B49/00; A63B49/02; A63B49/08; A63B60/00; A63B60/06; A63B60/16; A63B60/18
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1173588A
Cited
US1562881A
Cited
GB219535A
Cited
GB228650A
Cited
GB712224A
Cited
US3140873A
Cited
US3206204A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-16 | 1973-09-15 | 1974-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-16 | 1977-09-15 | 1978-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-16 | 1981-09-15 | 1982-03-17 | $7700.00 | Window Closed / Lapsed |