US2754546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mold
Assignee: Bridgestone Firestone Inc
•
Filing: 1951-11-13
•
Granted: 1956-07-17
•
Expires: 1971-11-13
Abstract
No abstract record available.
Inventors
- 👤 Fred H Mason
- 👤 George P Bosomworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:17
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/0601; B29C; B29C33/00; B29C33/38; B29C35/00; B29C35/02; B29C35/12; Y; Y10; Y10S; Y10S264/00; Y10S264/46; Y10S425/00; Y10S425/044
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A MOLD FOR CONTAINING AND FORMING RUBBER-LIKE MOLDABLE MATERIALS WHILE SAID MATERIALS ARE BEING TREATED BY HIGH FREQUENCY ELECTRICAL ENERGY, SAID MOLD COMPRISING A COHERENT BODY OF PERMANENT FORM HAVING A SURFACE DEFINING A MOLDING CAVITY AND COMPRISED SUBSTANTIALLY OF A DIELECTRIC MATERIAL OF THE SAME COMPOSITION AS THE RUBBER OR RUBBER-LIKE MATERIALS TO BE MOLDED AND CURED, ELECTRODES ON OPPOSITE SIDES OF SAID MOLD, AND A SOURCE OF HIGH-FREQUENCY CURRENT CONNECTED BETWEEN SAID ELECTRODES.
Claim 2
Dependent Claim
75 words
A MOLD FOR CONTAINING AND FORMING RUBBER-LIKE MOLDABLE MATERIALS WHILE SAID MATERIALS ARE BEING TREATED BY HIGH FREQUENCY ELECTRICAL ENERGY, SAID MOLD COMPRISING A COHERENT BODY OF PERMANENT FORM HAVING A SURFACE DEFINING A MOLDING CAVITY AND COMPRISED SUBSTANTIALLY OF A DIELECTRIC MATERIAL OF THE SAME COMPOSITION AS THE RUBBER OR RUBBER-LIKE MATERIALS TO BE MOLDED AND CURED, ELECTRODES ON OPPOSITE SIDES OF SAID MOLD, AND A SOURCE OF HIGH-FREQUENCY CURRENT CONNECTED BETWEEN SAID ELECTRODES.
References Cited (Backward Citations)
US1527206A
Cited
US2280771A
Cited
US2421097A
Cited
US2451992A
Cited
US2458864A
Cited
US2441548A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-17 | 1960-01-16 | 1960-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-17 | 1964-01-16 | 1964-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-17 | 1968-01-16 | 1968-07-17 | $7700.00 | Window Closed / Lapsed |