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US2895136A Expired / Lapsed US ⏱️ 0.0 years remaining

Safety hat

Assignee: Bullard Co
•
Filing: 1955-06-23
•
Granted: 1959-07-21
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Expires: 1975-06-23
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Abstract

No abstract record available.

Inventors

  • 👤 Alfred J Ruggiero

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 13:58
CPC Classifications
A; A42; A42B; A42B3/00; A42B3/04; A42B3/10; A42B3/14

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US451954A Cited
US1391620A Cited
US2286843A Cited
US2398561A Cited
US2536467A Cited
US2585937A Cited
US2742646A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1962-07-20 1963-01-19 1963-07-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1966-07-20 1967-01-19 1967-07-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1970-07-20 1971-01-19 1971-07-21 $7700.00 Window Closed / Lapsed

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