US2858941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: MICHIGAN WIRE CLOTH Co
•
Filing: 1953-10-22
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Granted: 1958-11-04
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Expires: 1973-10-22
Abstract
No abstract record available.
Inventors
- 👤 Rex C Darnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:07
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/62; B01D29/70; B01D29/74; B01D29/01; B01D29/66; B01D35/00; B01D35/14; B01D35/157
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US989827A
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US1995648A
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US2101211A
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US2167322A
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FR843730A
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US2392348A
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GB563831A
Cited
US2403602A
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US2560874A
Cited
US2675253A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-03 | 1962-05-05 | 1962-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-03 | 1966-05-05 | 1966-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-03 | 1970-05-05 | 1970-11-04 | $7700.00 | Window Closed / Lapsed |