Patent US5271972A successfully refreshed from Google Patents.
Patent US3754183A successfully refreshed from Google Patents.
Patent US2968985A successfully refreshed from Google Patents.
← Back to Patent Explorer
US2968985A Expired / Lapsed US ⏱️ 0.0 years remaining

Blasting caps

Assignee: Olin Corp
•
Filing: 1957-03-07
•
Granted: 1961-01-24
•
Expires: 1977-03-07
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Frederick R Seavey

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 21:59
CPC Classifications
F; F42; F42B; F42B3/00; F42B3/10; F42B3/195; F42B3/198

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

US2750831A Cited
US720073A Cited
US2423837A Cited
US2722155A Cited
US2763211A Cited
US2777389A Cited
US2772633A Cited
US2802421A Cited
US2801585A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1964-01-24 1964-07-25 1965-01-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1968-01-24 1968-07-25 1969-01-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1972-01-24 1972-07-25 1973-01-24 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag