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US3035781A Expired / Lapsed US ⏱️ 0.0 years remaining

Pulpers

Assignee: Cellwood Grubbens AB
•
Filing: 1959-11-25
•
Granted: 1962-05-22
•
Expires: 1979-11-25
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Abstract

No abstract record available.

Inventors

  • 👤 Wallen Emil Olof Lennart

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 01:20
CPC Classifications
D; D21; D21B; D21B1/00; D21B1/04; D21B1/12; D21B1/30; D21B1/34; D21B1/345; D21B1/347

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US1630361A Cited
US1741173A Cited
GB278152A Cited
US2665853A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1965-05-21 1965-11-20 1966-05-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1969-05-21 1969-11-20 1970-05-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1973-05-21 1973-11-20 1974-05-22 $7700.00 Window Closed / Lapsed

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