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Patent US2491180A successfully refreshed from Google Patents.
US2491180A
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Assignee: International Motors LLC
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Filing: 1944-07-17
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Granted: 1949-12-13
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Expires: 1964-07-17
Abstract
No abstract record available.
Inventors
- 👤 William A Horthy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:43
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/11; B01D29/13; B01D29/23; B01D29/232; B01D27/00; B01D27/04; B01D27/06; B01D35/00; B01D35/14; B01D35/147
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR255086A
Cited
US1651400A
Cited
FR370467A
Cited
GB401287A
Cited
FR803101A
Cited
US2337574A
Cited
US2352300A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-12 | 1953-06-13 | 1953-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-12 | 1957-06-13 | 1957-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-12 | 1961-06-13 | 1961-12-13 | $7700.00 | Window Closed / Lapsed |