Patent US2914823A successfully refreshed from Google Patents.
US2914823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Casting mold and pattern and process
Assignee: Bean Morris and Co
•
Filing: 1956-08-16
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Granted: 1959-12-01
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Expires: 1976-08-16
Abstract
No abstract record available.
Inventors
- 👤 Xarifa L Bean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:17
CPC Classifications
B; B22; B22C; B22C9/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A CASTING MOLD THE WALLS OF WHICH ARE COMPOSED OF GRAINS OF SAND WHICH HAVE BEEN INDIVIDUALLY PRE-COATED WITH DRY FILMS OF THERMOSETTING RESIN BINDER ADHERING TO SAID GRAINS, THE BINDER ON ADJACENT GRAINS BEING BONDED TOGETHER AND THERMOSET AROUND THE POINTS OF CONTACT AND THE FILMS BETWEEN SAID CONTACT POINTS BEING SO THIN AS TO LEAVE SUBSTANTIAL OPEN INTERSTICES FOR ESCAPE OF GASES THROUGH SAID MOLD.
Claim 2
Dependent Claim
67 words
A CASTING MOLD THE WALLS OF WHICH ARE COMPOSED OF GRAINS OF SAND WHICH HAVE BEEN INDIVIDUALLY PRE-COATED WITH DRY FILMS OF THERMOSETTING RESIN BINDER ADHERING TO SAID GRAINS, THE BINDER ON ADJACENT GRAINS BEING BONDED TOGETHER AND THERMOSET AROUND THE POINTS OF CONTACT AND THE FILMS BETWEEN SAID CONTACT POINTS BEING SO THIN AS TO LEAVE SUBSTANTIAL OPEN INTERSTICES FOR ESCAPE OF GASES THROUGH SAID MOLD.
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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) | 1962-11-30 | 1963-06-01 | 1963-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-30 | 1967-06-01 | 1967-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-30 | 1971-06-01 | 1971-12-01 | $7700.00 | Window Closed / Lapsed |