US3520969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a bowling pin
Assignee: AMF Bowling Companies Inc
•
Filing: 1966-08-01
•
Granted: 1970-07-21
•
Expires: 1986-08-01
Abstract
No abstract record available.
Inventors
- 👤 Richard A Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:09
CPC Classifications
A; A63; A63D; A63D9/00; Y; Y10; Y10S; Y10S273/00; Y10S273/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB657821A
Cited
US2568274A
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US2684504A
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US2787024A
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US2850767A
Cited
US2804400A
Cited
US3109201A
Cited
US3130102A
Cited
US3344468A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-20 | 1974-01-19 | 1974-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-20 | 1978-01-19 | 1978-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-20 | 1982-01-19 | 1982-07-21 | $7700.00 | Window Closed / Lapsed |