US3241834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Highly resilient polybutadiene ball
Assignee: Wham O Manufacturing Co
•
Filing: 1965-08-25
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Granted: 1966-03-22
•
Expires: 1985-08-25
Abstract
No abstract record available.
Inventors
- 👤 Norman H Stingley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:47
CPC Classifications
A; A63; A63B; A63B37/00; A63B2208/00; A63B2208/12; Y; Y10; Y10S; Y10S273/00; Y10S273/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A HIGHLY RESILIENT SOLID BALL IN THE FORM OF A SPHERE, THE BALL MATERIAL HAVING A SPECIFIC GRAVITY OF FROM ABOUT 1 TO ABOUT 1.3, AND COMPRISING IN COMBINATION A VULCANIZED POLYMER CHARACTERIZED BY THE USE OF 100 PARTS BY WEIGHT OF POLYBUTADIENE AND 0.5 TO 15 PARTS BY WEIGHT OF A SURVULCANIZING AGENT, AND FURTHER COMPRISING, IN ADDITION TO ANY ACTIVATORS AND ACCELERATORS USED FOR VULCANIZATION, 5 TO 15 PARTS BY WEIGHT OF AN INORGANIC REINFORCING MATERIAL.
Claim 2
Dependent Claim
78 words
A HIGHLY RESILIENT SOLID BALL IN THE FORM OF A SPHERE, THE BALL MATERIAL HAVING A SPECIFIC GRAVITY OF FROM ABOUT 1 TO ABOUT 1.3, AND COMPRISING IN COMBINATION A VULCANIZED POLYMER CHARACTERIZED BY THE USE OF 100 PARTS BY WEIGHT OF POLYBUTADIENE AND 0.5 TO 15 PARTS BY WEIGHT OF A SURVULCANIZING AGENT, AND FURTHER COMPRISING, IN ADDITION TO ANY ACTIVATORS AND ACCELERATORS USED FOR VULCANIZATION, 5 TO 15 PARTS BY WEIGHT OF AN INORGANIC REINFORCING MATERIAL.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |