US2708776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Core box for plaster of paris molds
Assignee: JAMES C HEINTZ Co
•
Filing: 1950-09-08
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Granted: 1955-05-24
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Expires: 1970-09-08
Abstract
No abstract record available.
Inventors
- 👤 Company The Cleveland Trust
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:33
CPC Classifications
B; B22; B22C; B22C7/00; B22C7/06; B22C9/00; Y; Y10; Y10S; Y10S425/00; Y10S425/029; Y10S425/044
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
122 words
A CORE BOX HAVING THEREIN A SEGMENTAL CAVITY BOUNDED BY A BACK, A BOTTOM, ROMOVABLE UPWARDLY CONVERGING SIDES AND A REMOVABLE FRONT, WHICH CAVITY IS DESIGNED FOR THE MOLDING OF A TREAD-FORMING PART OF A TIRE MOLD WHICH INCLUDES RADIAL IRREGULARITIES IN THE TREAD THEREOF, WHICH CAVITY HAS A FLEXIBLE FORMING PAD THEREIN, REMOVABLE MEAND ADJACENT THE BACK OF THE CORE BOX FOR SUPPORTING THE PAD AWAY FROM THE VERTICAL, THE BACK OF THE CORE BOX AND THE TOP OF THE PAD COMPRISING COMPLEMENTARY ANCHORING MEANS FOR THE PAD WHEREBY THE TOP OF THE PAD IS SUPPORTED AND BUBBLES RISING FROM THE MATERIAL CAST IN THE CORE BOX RISE VERTICALLY IN A DIRECTION WHICH IS GENERALLY TOWARD THE CENTER OF THE SEGMENT.
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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) | 1958-05-23 | 1958-11-22 | 1959-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-23 | 1962-11-22 | 1963-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-23 | 1966-11-22 | 1967-05-24 | $7700.00 | Window Closed / Lapsed |