← Back to Patent Explorer
US2422877A Expired / Lapsed US ⏱️ 0.0 years remaining

Bookholder

Assignee: Individual
•
Filing: 1944-07-12
•
Granted: 1947-06-24
•
Expires: 1964-07-12
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Edward H Anderson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 14:46
CPC Classifications
A; A47; A47B; A47B23/00; A47B23/04; A47B23/046

Claims Analysis

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

References Cited (Backward Citations)

US438856A Cited
US1307945A Cited
US689758A Cited
US1037140A Cited
US1111607A Cited
US1244320A Cited
US1299374A Cited
US1590726A Cited
US1427074A Cited
US1945931A Cited
US1974012A Cited
US2090346A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1950-06-23 1950-12-23 1951-06-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1954-06-23 1954-12-23 1955-06-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1958-06-23 1958-12-23 1959-06-24 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag