US3081091A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Practice ball
Assignee: Individual
•
Filing: 1962-03-08
•
Granted: 1963-03-12
•
Expires: 1982-03-08
Abstract
No abstract record available.
Inventors
- 👤 Harlow B Grow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:05
CPC Classifications
A; A63; A63B; A63B69/00; A63B69/36; A63B69/3623; A63B69/3655; A63B69/3617
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A PRACTICE BALL FOR ASCERTAINING THE EFFECTIVENESS OF THE SWING OF A CLUB USED IN STRIKING THE BALL BY PRODUCING A MARKING ON THE FACE OF THE CLUB, SAID PRACTICE BALL COMPRISING A HOLLOW BODY, A MARKING MATERIAL CONTAINED IN THE HOLLOW OF SAID BODY, AND SAID BODY HAVING AN EXUDATION PORTION TO BE STRUCK BY THE CLUB FOR EXUDING THE MARKING MATERIAL ONTO THE FACE OF THE CLUB RESPONSIVE TO IMPACT OF THE CLUB ON SAID BALL.
Claim 2
Dependent Claim
78 words
A PRACTICE BALL FOR ASCERTAINING THE EFFECTIVENESS OF THE SWING OF A CLUB USED IN STRIKING THE BALL BY PRODUCING A MARKING ON THE FACE OF THE CLUB, SAID PRACTICE BALL COMPRISING A HOLLOW BODY, A MARKING MATERIAL CONTAINED IN THE HOLLOW OF SAID BODY, AND SAID BODY HAVING AN EXUDATION PORTION TO BE STRUCK BY THE CLUB FOR EXUDING THE MARKING MATERIAL ONTO THE FACE OF THE CLUB RESPONSIVE TO IMPACT OF THE CLUB ON SAID BALL.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-11 | 1966-09-10 | 1967-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-11 | 1970-09-10 | 1971-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-11 | 1974-09-10 | 1975-03-12 | $7700.00 | Window Closed / Lapsed |