Patent US3340926A successfully refreshed from Google Patents.
US3340926A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Casting apparatus
Assignee: SYLVESTER ENTERPRISES
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Filing: 1964-07-14
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Granted: 1967-09-12
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Expires: 1984-07-14
Abstract
No abstract record available.
Inventors
- 👤 Edmund Q Sylvester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:30
CPC Classifications
B; B22; B22D; B22D18/00; B22D18/04; B22D7/00; B22D7/06; B22D7/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
MOLD APPARATUS OF THE CHARACTER DISCLOSED COMPRISING OPPOSED SIDE BLOCKS, MEANS FOR MOVING THE SIDE BLOCKS TOWARD AND AWAY FROM EACH OTHER, A PLURALITY OF REMOVABLE INNER BLOCKS INCLUDING TOP, END AND BOTTOM BLOCKS, SAID REMOVABLE INNER BLOCKS POSITIONED BETWEEN THE SIDE BLOCKS AND ENGAGEABLE THEREWITH TO DEFINE A CAVITY WHEN SAID SIDE BLOCKS ARE MOVED TOWARD EACH OTHER, AND AN INGATE DETACHABLY MOUNTED TO THE ASSEMBLY OF SAID BLOCKS, SAID INGATE INCLUDING A PASSAGE BETWEEN THE EXTERIOR AND A REMAINING OPEN PORTION OF SAID CAVITY TO PERMIT THE FLOW OF MOLTEN METAL INTO THE CAVITY.
Claim 2
Dependent Claim
96 words
MOLD APPARATUS OF THE CHARACTER DISCLOSED COMPRISING OPPOSED SIDE BLOCKS, MEANS FOR MOVING THE SIDE BLOCKS TOWARD AND AWAY FROM EACH OTHER, A PLURALITY OF REMOVABLE INNER BLOCKS INCLUDING TOP, END AND BOTTOM BLOCKS, SAID REMOVABLE INNER BLOCKS POSITIONED BETWEEN THE SIDE BLOCKS AND ENGAGEABLE THEREWITH TO DEFINE A CAVITY WHEN SAID SIDE BLOCKS ARE MOVED TOWARD EACH OTHER, AND AN INGATE DETACHABLY MOUNTED TO THE ASSEMBLY OF SAID BLOCKS, SAID INGATE INCLUDING A PASSAGE BETWEEN THE EXTERIOR AND A REMAINING OPEN PORTION OF SAID CAVITY TO PERMIT THE FLOW OF MOLTEN METAL INTO THE CAVITY.
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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) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |