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US2890477A Expired / Lapsed US ⏱️ 0.0 years remaining

Door check and hold open

Assignee: Soss Manufacturing Co
•
Filing: 1957-04-12
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Granted: 1959-06-16
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Expires: 1977-04-12
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Abstract

No abstract record available.

Inventors

  • 👤 Calvin K Miller

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 23:50
CPC Classifications
E; E05; E05D; E05D11/00; E05D11/10; E05D11/1028; E05D11/1078; E05D11/1085; E05D11/08; E05D11/082; E05D11/084; E05D11/105; E05D11/1057; E05D2011/1035; E05F; E05F1/00; E05F1/08; E05F1/10; E05F1/12; E05F1/1207; E05F1/1215; E05Y; E05Y2201/00; E05Y2201/40; E05Y2201/47; E05Y2201/49; E05Y2900/00; E05Y2900/50; E05Y2900/53; E05Y2900/531

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US864932A Cited
US1912289A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1962-06-15 1962-12-15 1963-06-16 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1966-06-15 1966-12-15 1967-06-16 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1970-06-15 1970-12-15 1971-06-16 $7700.00 Window Closed / Lapsed

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