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US2802086A Expired / Lapsed US ⏱️ 0.0 years remaining

Sealing device for heat sealing machines of the thermal impulse type

Assignee: Individual
•
Filing: 1955-10-04
•
Granted: 1957-08-06
•
Expires: 1975-10-04
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Abstract

No abstract record available.

Inventors

  • 👤 Fener Alfred

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-22 15:55
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/01; B29C66/05; B29C66/20; B29C66/21; B29C65/00; B29C65/02; B29C65/18; B29C65/22; B29C65/221; B29C65/224; B29C65/229; B29C65/38; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/43; B29C66/70; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29C66/80; B29C66/81; B29C66/818; B29C66/8181; B29C66/81811; B29C66/8182; B29C66/81821; B29C66/83; B29C66/832; B29C66/8322; B29C66/812; B29C66/8122

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US1435392A Cited
US2460460A Cited
US2589777A Cited
US2721925A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1960-08-05 1961-02-04 1961-08-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1964-08-05 1965-02-04 1965-08-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1968-08-05 1969-02-04 1969-08-06 $7700.00 Window Closed / Lapsed

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