Patent US4364565A successfully refreshed from Google Patents.
US4364565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Game ball
Assignee: HOME OF CHAMPIONS SA A CORP OF HAITI
•
Filing: 1981-07-31
•
Granted: 1982-12-21
•
Expires: 2001-07-31
Abstract
Abstract A game ball is comprised of a single spherical core and a cover. The core is comprised of a single spherical mass of partially blown copolymer of ethylene and at least one unsaturated monocarboxylic acid having from 3 to 8 carbon atoms. The copolymer contains up to 30 percent by weight of the acid copolymerized therein with foam at the center of the core and having a skin with the density substantially equal to the density of the copolymer. The game balls are baseballs and softballs.
Inventors
- 👤 Julius Tomar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:38
CPC Classifications
A; A63; A63B; A63B37/00; A63B37/02; A63B37/06; Y; Y10; Y10S; Y10S264/00; Y10S264/83
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
96 words
In a game ball comprised of a spherical core and a cover, the improvement wherein said core is comprised of a partially blown single spherical mass of at least 10 percent by weight of a copolymer of ethylene and at least one unsaturated monocarboxylic acid having from 3 to 8 carbon atoms, said copolymer containing up to 30 percent by weight of said acid copolymerized therein with foam at the center of said core and having a skin with a density substantially equal to the density of said copolymer, said copolymer being crosslinked with thermolabile crosslinkages.
Claim 2
Dependent Claim
96 words
In a game ball comprised of a spherical core and a cover, the improvement wherein said core is comprised of a partially blown single spherical mass of at least 10 percent by weight of a copolymer of ethylene and at least one unsaturated monocarboxylic acid having from 3 to 8 carbon atoms, said copolymer containing up to 30 percent by weight of said acid copolymerized therein with foam at the center of said core and having a skin with a density substantially equal to the density of said copolymer, said copolymer being crosslinked with thermolabile crosslinkages.
Claim 3
Dependent Claim
18 words
The game ball of claim 1 wherein said spherical mass includes a copolymer of ethylene and vinyl acetate.
Claim 4
Dependent Claim
31 words
The game ball of claim 1 which is a softball and wherein said spherical mass has at least 60 percent by weight of said copolymer of ethylene and unsaturated monocarboxylic acid.
Claim 5
Dependent Claim
27 words
The softball of claim 3 wherein said spherical mass has therein at least 75 percent by weight of said copolymer of ethylene and said unsaturated monocarboxylic acid.
Claim 6
Dependent Claim
26 words
The softball of claim 4 consisting essentially of said copolymer of ethylene and at least one unsaturated monocarboxylic and, said softball being a restricted flight softball.
References Cited (Backward Citations)
US3976295A
Cited
US3976295B1
Cited
US4102829A
Cited
US4149720A
Cited
US4144297A
Cited
US4274637A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-12-20 | 1986-06-21 | 1986-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-12-20 | 1990-06-21 | 1990-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-12-20 | 1994-06-21 | 1994-12-21 | $7700.00 | Window Closed / Lapsed |