Patent US3147974A successfully refreshed from Google Patents.
US3147974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic bowling pins
Assignee: AMF Inc
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Filing: 1959-11-12
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Granted: 1964-09-08
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Expires: 1979-11-12
Abstract
No abstract record available.
Inventors
- 👤 Leandro W Tomarkin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:02
CPC Classifications
A; A63; A63D; A63D9/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
52 words
A BOWLING PIN CONSISTING OF A RIGID BODY OF POLYURETHANE HAVING A CELLULAR STRUCTURE, SAID BODY BEING ELONGATED AND COMPRISING A BASE AT ONE END FOR ENGAGING A PLAYING SURFACE, AND A PORTION BETWEEN SAID BASE AND THE OTHER END ADAPTED TO BE STRUCK BY A BALL ROLLING ALONG SUCH PLAYING SURFACE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-08 | 1968-03-09 | 1968-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-08 | 1972-03-09 | 1972-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-08 | 1976-03-09 | 1976-09-08 | $7700.00 | Window Closed / Lapsed |