Patent US2225946A successfully refreshed from Google Patents.
US2225946A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for cleaning cylinder heads or the like
Assignee: VULCAN SOOT BLOWER Corp
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Filing: 1938-01-17
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Granted: 1940-12-24
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Expires: 1958-01-17
Abstract
No abstract record available.
Inventors
- 👤 Fred C Arey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:42
CPC Classifications
C; C23; C23G; C23G3/00; C23G3/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1943-12-24 | 1944-06-24 | 1944-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-12-24 | 1948-06-24 | 1948-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-12-24 | 1952-06-24 | 1952-12-24 | $7700.00 | Window Closed / Lapsed |