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US3216154A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of forming small glass envelopes, beads and the like

Assignee: OI Glass Inc
•
Filing: 1961-06-07
•
Granted: 1965-11-09
•
Expires: 1981-06-07
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Abstract

No abstract record available.

Inventors

  • 👤 David L Christen
  • 👤 Chester C Cipriani
  • 👤 Richard G Russell

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 19:06
CPC Classifications
B; B28; B28D; B28D7/00; B28D7/04; C; C03; C03B; C03B33/00; C03B33/06

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US2328302A Cited
US2436819A Cited
US2607714A Cited
US2760314A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1968-11-08 1969-05-10 1969-11-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1972-11-08 1973-05-10 1973-11-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1976-11-08 1977-05-10 1977-11-09 $7700.00 Window Closed / Lapsed

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