US2708773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for making molds
Assignee: HERMAN W RICHTER
•
Filing: 1951-08-06
•
Granted: 1955-05-24
•
Expires: 1971-08-06
Abstract
No abstract record available.
Inventors
- 👤 Ernest N Bacon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:01
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/02; B29C53/04; Y; Y10; Y10S; Y10S425/00; Y10S425/029
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
METHOD OF MAKING A MOLD BLOCK FOR USE IN THE MANUFACTURE OF A HEEL COMPRISING MAKING BLOCKS WHICH CONFORM IN HORIZONTAL SECTION TO A PERPENDICULAR PROJECTION OF EACH SIDE OF THE HEEL, ONE HAVING AN END FACE CORRESPONDING IN SURFACE CONTOUR TO ONE SIDE OF THE HEEL AND THE OTHER TO THE OPPOSITE SIDE OF THE HEEL, SANDWICHING A WOOD HEEL PATTERN BETWEEN THE BLOCKS, CASTING A FLUID MATERIAL ABOUT THE COMPOSITE CORE FORMED BY THE BLOCKS AND HEEL PATTERN, ALLOWING THE PLASTIC TO SOLIDIFY AND THEN REMOVING THE BLOCKS AND HEEL.
Claim 2
Dependent Claim
92 words
METHOD OF MAKING A MOLD BLOCK FOR USE IN THE MANUFACTURE OF A HEEL COMPRISING MAKING BLOCKS WHICH CONFORM IN HORIZONTAL SECTION TO A PERPENDICULAR PROJECTION OF EACH SIDE OF THE HEEL, ONE HAVING AN END FACE CORRESPONDING IN SURFACE CONTOUR TO ONE SIDE OF THE HEEL AND THE OTHER TO THE OPPOSITE SIDE OF THE HEEL, SANDWICHING A WOOD HEEL PATTERN BETWEEN THE BLOCKS, CASTING A FLUID MATERIAL ABOUT THE COMPOSITE CORE FORMED BY THE BLOCKS AND HEEL PATTERN, ALLOWING THE PLASTIC TO SOLIDIFY AND THEN REMOVING THE BLOCKS AND HEEL.
References Cited (Backward Citations)
US384448A
Cited
US486607A
Cited
US1556802A
Cited
US287617A
Cited
US996783A
Cited
US1401577A
Cited
US1692433A
Cited
US1661425A
Cited
US1824835A
Cited
US2198634A
Cited
US2138974A
Cited
US2082451A
Cited
US2306516A
Cited
US2397168A
Cited
US2482257A
Cited
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 |