US2562807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bowling pin hardening apparatus
Assignee: BRUNSWICK-BALKE-COLLENDER Co
•
Filing: 1945-11-13
•
Granted: 1951-07-31
•
Expires: 1965-11-13
Abstract
No abstract record available.
Inventors
- 👤 Herman E Mckenzie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:54
CPC Classifications
B; B27; B27M; B27M1/00; B27M1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US461329A
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US2183599A
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US638477A
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US1068775A
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US1371546A
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US1542576A
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US1505768A
Cited
US1821037A
Cited
US1952664A
Cited
US2283331A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-30 | 1955-01-29 | 1955-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-30 | 1959-01-29 | 1959-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-30 | 1963-01-29 | 1963-07-31 | $7700.00 | Window Closed / Lapsed |