Patent US2743931A successfully refreshed from Google Patents.
US2743931A
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US
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Practice or play ball and method of making same
Assignee: Uniroyal Inc
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Filing: 1953-02-26
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Granted: 1956-05-01
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Expires: 1973-02-26
Abstract
No abstract record available.
Inventors
- 👤 Robert W Pooley
- 👤 Robert C Kohrn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:36
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/04; C08J9/06; B; B29; B29D; B29D99/00; B29D99/0042; A; A63; A63B; A63B43/00; A63B2043/001; B29C; B29C43/00; B29C63/00; B29K; B29K2027/00; B29K2027/06; B29K2105/00; B29K2105/04; B29K2105/046; B29L; B29L2031/00; B29L2031/54
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE21063E
Cited
US1653893A
Cited
US2452999A
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US2484397A
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US2525965A
Cited
GB646879A
Cited
US2570182A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-01 | 1959-10-31 | 1960-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-01 | 1963-10-31 | 1964-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-01 | 1967-10-31 | 1968-05-01 | $7700.00 | Window Closed / Lapsed |