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US3549510A Expired / Lapsed US ⏱️ 0.0 years remaining

Polymer-treated irradiated bendable sheets of ligno-cellulose and method of making same

Assignee: Di Giorgio Corp
•
Filing: 1967-06-12
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Granted: 1970-12-22
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Expires: 1987-06-12
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Abstract

No abstract record available.

Inventors

  • 👤 Samuel L Casalina

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 07:07
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/03; D21H17/05; D21H17/18; D21H17/19; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/3188

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US2321939A Cited
US3077417A Cited
US3374715A Cited
US3420761A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1973-12-21 1974-06-22 1974-12-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1977-12-21 1978-06-22 1978-12-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1981-12-21 1982-06-22 1982-12-22 $7700.00 Window Closed / Lapsed

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