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US2887276A Expired / Lapsed US ⏱️ 0.0 years remaining

Shell type pulpstone

Assignee: Kimberly Clark Corp
•
Filing: 1957-04-24
•
Granted: 1959-05-19
•
Expires: 1977-04-24
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Abstract

No abstract record available.

Inventors

  • 👤 Rudolf G Minarik

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 12:01
CPC Classifications
B; B24; B24D; B24D5/00; B24D5/10; B24D5/06

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US524572A Cited
US2282887A Cited
DE511547C Cited
US2078452A Cited
US2769286A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1962-05-18 1962-11-17 1963-05-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1966-05-18 1966-11-17 1967-05-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1970-05-18 1970-11-17 1971-05-19 $7700.00 Window Closed / Lapsed

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