Patent US3248113A successfully refreshed from Google Patents.
US3248113A
Expired / Lapsed
US
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Bowling ball
Assignee: AMF Inc
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Filing: 1962-06-05
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Granted: 1966-04-26
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Expires: 1982-06-05
Abstract
No abstract record available.
Inventors
- 👤 Alois C Baggenstoss
- 👤 Donal P Dorne
- 👤 William A Dunne
- 👤 Joseph R Infantino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:55
CPC Classifications
A; A63; A63B; A63B37/00; A63B37/0001; A63B2208/00; A63B2208/12; Y; Y10; Y10S; Y10S273/00; Y10S273/03; Y10S273/04; Y10S273/08
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
56 words
A BOWLING BALL HAVING A SURFACE LAYER OF FROM ABOUT 0.25 INCH TO ABOUT 2.0 INCHES IN THICKNESS COMPRISING POLYURETHANE RESIN IN ADMIXTURE WITH BETWEEN ABOUT 5 TO ABOUT 40% BY WEIGHT OF EPOXY RESIN BASED ON THE TOTAL WEIGHT OF EPOXY AND POLYURETHANE AND HAVING A DUROMETER HARDNESS OF FROM ABOUT 60 TO ABOUT 100.
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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) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |