US2472245A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of finning engine cylinders
Assignee: Griscom Russell Co
•
Filing: 1944-04-17
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Granted: 1949-06-07
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Expires: 1964-04-17
Abstract
No abstract record available.
Inventors
- 👤 William M Busse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:43
CPC Classifications
B; B21; B21C; B21C37/00; B21C37/06; B21C37/15; B21C37/22; B21C37/26; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49377; Y10T29/49378; Y10T29/49382
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US855239A
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US1032925A
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US1498891A
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US1623766A
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US1628804A
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US1668534A
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US1896350A
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US1878233A
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US2327259A
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US2372795A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-06 | 1952-12-06 | 1953-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-06 | 1956-12-06 | 1957-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-06 | 1960-12-06 | 1961-06-07 | $7700.00 | Window Closed / Lapsed |