Patent US2697606A successfully refreshed from Google Patents.
US2697606A
Expired / Lapsed
US
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Pit cushion for bowling alleys
Assignee: Individual
•
Filing: 1950-09-25
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Granted: 1954-12-21
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Expires: 1970-09-25
Abstract
No abstract record available.
Inventors
- 👤 Mcdonald Archibald Leslie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:24
CPC Classifications
A; A63; A63D; A63D5/00; A63D5/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1286396A
Cited
US1797116A
Cited
GB446300A
Cited
US2147362A
Cited
US2237600A
Cited
US2472208A
Cited
US2531167A
Cited
US2606755A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-20 | 1958-06-21 | 1958-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-20 | 1962-06-21 | 1962-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-20 | 1966-06-21 | 1966-12-21 | $7700.00 | Window Closed / Lapsed |