← Back to Patent Explorer
US3192375A Expired / Lapsed US ⏱️ 0.0 years remaining

Illuminated level

Assignee: Individual
•
Filing: 1964-05-14
•
Granted: 1965-06-29
•
Expires: 1984-05-14
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Enok P Olson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-22 17:17
CPC Classifications
G; G01; G01C; G01C9/00; G01C9/18; G01C9/24; G01C9/26; G01C9/32

Claims Analysis

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

References Cited (Backward Citations)

US1566541A Cited
US1298844A Cited
US1462054A Cited
US2922874A Cited
US3114507A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1968-06-28 1968-12-28 1969-06-29 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1972-06-28 1972-12-28 1973-06-29 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1976-06-28 1976-12-28 1977-06-29 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag