Patent US2600918A successfully refreshed from Google Patents.
US2600918A
Expired / Lapsed
US
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Bowling ball return mechanism
Assignee: AMF Inc
•
Filing: 1947-03-01
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Granted: 1952-06-17
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Expires: 1967-03-01
Abstract
No abstract record available.
Inventors
- 👤 Pohl Ernest Erwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:28
CPC Classifications
A; A63; A63D; A63D5/00; A63D5/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US456375A
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US695624A
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US709163A
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US1068131A
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US2130330A
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US2207643A
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US2265719A
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US2389643A
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US2349968A
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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) | 1955-06-17 | 1955-12-17 | 1956-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-17 | 1959-12-17 | 1960-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-17 | 1963-12-17 | 1964-06-17 | $7700.00 | Window Closed / Lapsed |