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US2622710A Expired / Lapsed US ⏱️ 0.0 years remaining

Insulated sash frame

Assignee: WINDOW PRODUCTS Inc
•
Filing: 1948-08-18
•
Granted: 1952-12-23
•
Expires: 1968-08-18
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Abstract

No abstract record available.

Inventors

  • 👤 Glenn B Haas

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 13:29
CPC Classifications
B; B21; B21D; B21D53/00; B21D53/74; E; E06; E06B; E06B3/00; E06B3/04; E06B3/263; E06B3/273; E06B3/2735

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US1135061A Cited
US1174302A Cited
US1723307A Cited
FR694942A Cited
US1832847A Cited
US2208486A Cited
US2259382A Cited
US2416240A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1955-12-23 1956-06-23 1956-12-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1959-12-23 1960-06-23 1960-12-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1963-12-23 1964-06-23 1964-12-23 $7700.00 Window Closed / Lapsed

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