Patent US2511074A successfully refreshed from Google Patents.
US2511074A
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Assignee: Kawneer Co Inc
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Filing: 1944-06-10
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Granted: 1950-06-13
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Expires: 1964-06-10
Abstract
No abstract record available.
Inventors
- 👤 James T Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:26
CPC Classifications
E; E04; E04F; E04F13/00; E04F13/07; E04F13/08; E04F13/0801; E04F13/0803; E04F13/081; E04F13/0814
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2097484A
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US2128495A
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US2112348A
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US2192814A
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US2209283A
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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) | 1953-06-12 | 1953-12-12 | 1954-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-12 | 1957-12-12 | 1958-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-12 | 1961-12-12 | 1962-06-13 | $7700.00 | Window Closed / Lapsed |