US2785805A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Dana Inc
•
Filing: 1953-06-12
•
Granted: 1957-03-19
•
Expires: 1973-06-12
Abstract
No abstract record available.
Inventors
- 👤 Lewis M Hough
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:12
CPC Classifications
B; B01; B01D; B01D37/00; B01D37/02; B01D37/025; B01D29/00; B01D29/11; B01D29/13; B01D29/15; B01D29/21; B01D29/50; B01D29/56; B01D29/58
Claims Analysis
Total Claims: 0
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US2456428A
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US2534907A
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US2591574A
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US2566353A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-03-18 | 1960-09-17 | 1961-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-18 | 1964-09-17 | 1965-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-18 | 1968-09-17 | 1969-03-19 | $7700.00 | Window Closed / Lapsed |