Patent US3226782A successfully refreshed from Google Patents.
US3226782A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable-taper casting mold
Assignee: United States Steel Corp
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Filing: 1963-03-01
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Granted: 1966-01-04
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Expires: 1983-03-01
Abstract
No abstract record available.
Inventors
- 👤 Robert A Schultz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:10
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/04; B22D11/05
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
60 words
A MOLD OF POLYGONAL SHAPE IN HORIZONTAL SECTION COMPRISING A PLURALITY OF UPSTANDING SIDEWALL PANELS ANGULARLY DISPOSED WITH THEIR EDGES IN SPACED RELATION AND CORNER MEMBERS FITTED AGAINST THE EDGE OF ADJACENT PANELS AT EACH CORNER, EACH OF SAID CORNER MEMBERS COMPRISING AN OUTER CORNER, ANGLE AND A LINER BLOCK FITTING THEREIN, SAID ANGLE HAVING MEANS FOR SUPPORTING SAID BLOCK.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |