← Back to Patent Explorer
US3491401A Expired / Lapsed US ⏱️ 0.0 years remaining

Molding apparatus with mixing chamber

Assignee: Hollymatic Corp
•
Filing: 1967-06-21
•
Granted: 1970-01-27
•
Expires: 1987-06-21
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Harry H Holly

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 06:14
CPC Classifications
A; A22; A22C; A22C7/00

Claims Analysis

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

References Cited (Backward Citations)

US1648834A Cited
US1757447A Cited
US2219889A Cited
US2413046A Cited
US2820247A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1973-01-26 1973-07-28 1974-01-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1977-01-26 1977-07-28 1978-01-27 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1981-01-26 1981-07-28 1982-01-27 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag