US3528658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Racket and method of making same
Assignee: Charger Corporation
•
Filing: 1968-03-06
•
Granted: 1970-09-15
•
Expires: 1988-03-06
Abstract
No abstract record available.
Inventors
- 👤 Maynard H Cheris
- 👤 Aloise A Bigos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:41
CPC Classifications
A; A63; A63B; A63B49/00; A63B49/02; A63B49/12; A63B60/00; A63B49/022; A63B49/03; A63B60/06; A63B60/14
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US240183A
Cited
GB219535A
Cited
GB237935A
Cited
AU371526A
Cited
FR639932A
Cited
GB315046A
Cited
US1937787A
Cited
GB690270A
Cited
US3206204A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-14 | 1974-03-16 | 1974-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-14 | 1978-03-16 | 1978-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-14 | 1982-03-16 | 1982-09-15 | $7700.00 | Window Closed / Lapsed |