Patent US4196901B1 successfully refreshed from Google Patents.
US4196901B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tennis racquet
Assignee: Individual
•
Filing: 1977-03-07
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Granted: 1998-05-26
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Expires: 1997-03-07
Abstract
No abstract record available.
Inventors
- 👤 Enoch J Durbin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:53
CPC Classifications
A; A63; A63B; A63B49/00; A63B49/02; A63B49/03; A63B51/00; A63B51/004; A63B60/00; A63B60/06; A63B60/14; A63B2049/0207; A63B2049/0212; A63B60/54
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-05-25 | 2001-11-24 | 2002-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-05-25 | 2005-11-24 | 2006-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-05-25 | 2009-11-24 | 2010-05-26 | $7700.00 | Window Closed / Lapsed |