US3214803A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Core box vent
Assignee: HILLSDALE TOOL AND Manufacturing CO
•
Filing: 1963-01-03
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Granted: 1965-11-02
•
Expires: 1983-01-03
Abstract
No abstract record available.
Inventors
- 👤 David E Arnt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:38
CPC Classifications
B; B22; B22C; B22C7/00; B22C7/06; B22C7/065
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
125 words
A CORE BOX VENT FORMED FROM AN INTEGRAL BLANK OF SHEET MATERIAL COMPRISING, IN COMBINATION, (A) AN ANMNULAR BODY PORTION HAVING AN EDGE TRANSVERSELY DISPOSED TO THE AXIS OF SAID BODY PORTION AND DEFINING AN END THEREOF, SAID EDGE ADAPTED TO BE LOCATED ADJACENT A MOLD CAVITY, (B) A HEAD RESILIENTLY CONNECTED TO SAID BODY PORTION AT SAID EDGE THEREOF, SAID HEAD HAVING A GENERAL PERIPHERAL CONFIGURATION SIMILAR TO THE ANNULAR CONFIGURATION OF SAID BODY PORTION AND DISPOSED ADJACENT SAID BODY PORTION EDGE, (C) SAID HEAD DIMENSIONS BEING SO RELATED TO SAID BODY PORTION WHEREBY A VENT OPENING IS DEFINED BETWEEN THE PERIPHERY OF SAID HEAD AND SAID BODY PORTION, AND (D) SAID BODY PORTION INCLUDING AN OPEN END OPPOSITELY DISPOSED RELARIVE TO SAID EDGE.
Claim 2
Dependent Claim
125 words
A CORE BOX VENT FORMED FROM AN INTEGRAL BLANK OF SHEET MATERIAL COMPRISING, IN COMBINATION, (A) AN ANMNULAR BODY PORTION HAVING AN EDGE TRANSVERSELY DISPOSED TO THE AXIS OF SAID BODY PORTION AND DEFINING AN END THEREOF, SAID EDGE ADAPTED TO BE LOCATED ADJACENT A MOLD CAVITY, (B) A HEAD RESILIENTLY CONNECTED TO SAID BODY PORTION AT SAID EDGE THEREOF, SAID HEAD HAVING A GENERAL PERIPHERAL CONFIGURATION SIMILAR TO THE ANNULAR CONFIGURATION OF SAID BODY PORTION AND DISPOSED ADJACENT SAID BODY PORTION EDGE, (C) SAID HEAD DIMENSIONS BEING SO RELATED TO SAID BODY PORTION WHEREBY A VENT OPENING IS DEFINED BETWEEN THE PERIPHERY OF SAID HEAD AND SAID BODY PORTION, AND (D) SAID BODY PORTION INCLUDING AN OPEN END OPPOSITELY DISPOSED RELARIVE TO SAID EDGE.
Claim 3
Independent Claim
20 words
THE METHOD OF FORMING A CORE BOX VENT FROM A PLANAR STAMPED BLANK OF SHEET MATERIAL COMPRISING THE STEPS OF
Claim 4
Independent Claim
20 words
THE METHOD OF FORMING A CORE BOX VENT FROM A PLANAR STAMPED BLANK OF SHEET MATERIAL COMPRISING THE STEPS OF
References Cited (Backward Citations)
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US2126097A
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US2482321A
Cited
US2914821A
Cited
US3025818A
Cited
US3066631A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |