Patent US2075781A successfully refreshed from Google Patents.
← Back to Patent Explorer
US2554577A Expired / Lapsed US ⏱️ 0.0 years remaining

Envelope feeder

Assignee: MILLER LAUFFER PRINTING EQUIPM
•
Filing: 1947-08-15
•
Granted: 1951-05-29
•
Expires: 1967-08-15
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Jacob R Lauffer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 08:22
CPC Classifications
B; B41; B41L; B41L47/00; B41L47/24; B41L47/26

Claims Analysis

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

References Cited (Backward Citations)

USRE21489E Cited
US683707A Cited
US1135140A Cited
US1447334A Cited
US1724199A Cited
US1879608A Cited
US2132227A Cited
US2184362A Cited
US2257490A Cited
US2332156A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1954-05-28 1954-11-27 1955-05-29 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1958-05-28 1958-11-27 1959-05-29 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1962-05-28 1962-11-27 1963-05-29 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag