US3127459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for making perforated bricks
Assignee: Harbison Walker Refractories Co
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Filing: 1962-01-11
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Granted: 1964-03-31
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Expires: 1982-01-11
Abstract
No abstract record available.
Inventors
- 👤 Richard E Bratton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:17
CPC Classifications
B; B28; B28B; B28B13/00; B28B13/02; B28B13/0215; B28B13/023; B28B1/00; B28B1/44; B28B3/00; B28B3/02; B28B7/00; B28B7/16; B28B7/18; B28B7/183
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
IN METHODS OF FABRICATING APERTURED BODIES FROM UNCONSOLIDATED GRANULAR BRICKMAKING MATERIAL IN WHICH SAID MATERIAL IS DELIVERED TO A CAVITY AND A PAIR OF OPPOSED DIES ARE RECIPROCALLY MOVABLE WITHIN THE CONFINES OF SAID CAVITY TO COMPRESS MATERIAL DEPOSITED THEREIN TO MAKE SELF-SUS TAINING BODIES AND IN WHICH A PLURALITY OF PINS ARE USED TO MAKE PASSAGES THROUGH THE BODIES, THE IMPROVEMENT WHICH COMPRISES THE STEPS OF MOVING SAID PINS THROUGH UNCONSOLIDATED MATERIAL DEPOSITED IN SAID CAVITY TO REMOVE A QUANTITY OF MATERIAL THEREFROM, AND THEN LEVELING THE TOP OF THE MATERIAL REMAINING IN THE CAVITY TO EVENLY DISTRIBUTE MATERIAL ABOUT SAID PINS WITHIN SAID CAVITY ALL PRIOR TO COMPRESSING SAID MATERIAL.
Claim 2
Dependent Claim
112 words
IN METHODS OF FABRICATING APERTURED BODIES FROM UNCONSOLIDATED GRANULAR BRICKMAKING MATERIAL IN WHICH SAID MATERIAL IS DELIVERED TO A CAVITY AND A PAIR OF OPPOSED DIES ARE RECIPROCALLY MOVABLE WITHIN THE CONFINES OF SAID CAVITY TO COMPRESS MATERIAL DEPOSITED THEREIN TO MAKE SELF-SUS TAINING BODIES AND IN WHICH A PLURALITY OF PINS ARE USED TO MAKE PASSAGES THROUGH THE BODIES, THE IMPROVEMENT WHICH COMPRISES THE STEPS OF MOVING SAID PINS THROUGH UNCONSOLIDATED MATERIAL DEPOSITED IN SAID CAVITY TO REMOVE A QUANTITY OF MATERIAL THEREFROM, AND THEN LEVELING THE TOP OF THE MATERIAL REMAINING IN THE CAVITY TO EVENLY DISTRIBUTE MATERIAL ABOUT SAID PINS WITHIN SAID CAVITY ALL PRIOR TO COMPRESSING SAID MATERIAL.
References Cited (Backward Citations)
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Cited
US1543068A
Cited
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Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-31 | 1967-09-30 | 1968-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-31 | 1971-09-30 | 1972-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-31 | 1975-09-30 | 1976-03-31 | $7700.00 | Window Closed / Lapsed |