Patent US3220066A successfully refreshed from Google Patents.
US3220066A
Expired / Lapsed
US
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Squeeze molding machine
Assignee: —
•
Filing: 1961-07-28
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Granted: 1965-11-30
•
Expires: 1981-07-28
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:08
CPC Classifications
B; B22; B22C; B22C15/00; B22C15/10; B22C15/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
A SQUEEZE HEAD FOR FOUNDRY MOLDING MACHINES COMPRISING A SERIES OF DOWNWARDLY PROJECTING PISTON-CYLINDER ASSEMBLIES, MEANS MANIFOLDING EACH OF SAID PISTON-CYLINDER ASSEMBLIES TO A COMMON SOURCE OF FLUID UNDER PRESSURE, AND MEANS RESPONSIVE TO A PREETERMINED PRESSURE IN SAID MANIFOLD MEANS OPERATIVE TO FIX THE QUANTITY OF FLUID IN SAID SYSTEM.
Claim 2
Dependent Claim
51 words
A SQUEEZE HEAD FOR FOUNDRY MOLDING MACHINES COMPRISING A SERIES OF DOWNWARDLY PROJECTING PISTON-CYLINDER ASSEMBLIES, MEANS MANIFOLDING EACH OF SAID PISTON-CYLINDER ASSEMBLIES TO A COMMON SOURCE OF FLUID UNDER PRESSURE, AND MEANS RESPONSIVE TO A PREETERMINED PRESSURE IN SAID MANIFOLD MEANS OPERATIVE TO FIX THE QUANTITY OF FLUID IN SAID SYSTEM.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |