US3717344A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bowling pin with plastic protective cladding
Assignee: AMF Bowling Companies Inc
•
Filing: 1970-11-03
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Granted: 1973-02-20
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Expires: 1990-11-03
Abstract
Abstract A bowling pin having a preformed wood body or core encased in a plastic cladding, the cladding being a polyurethane and the pin having a de-adhering coating on the core, the bond strength of the coating to the core or to the polyurethane being less than the bond strength of the polyurethane to the core or the cohesion of the coating layer per se is less than the adhesion of the coating to the core or to the polyurethane.
Inventors
- 👤 J Infantino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:43
CPC Classifications
A; A63; A63D; A63D9/00; Y; Y10; Y10S; Y10S273/00; Y10S273/03; Y10S273/04; Y10S273/08; Y10S273/09; Y10S273/12; Y10S273/29
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2876011A
Cited
US3018106A
Cited
US3220731A
Cited
US3257113A
Cited
US3298690A
Cited
US3520969A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-20 | 1976-08-21 | 1977-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-20 | 1980-08-21 | 1981-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-20 | 1984-08-21 | 1985-02-20 | $7700.00 | Window Closed / Lapsed |