Patent US2707802A successfully refreshed from Google Patents.
US2707802A
Expired / Lapsed
US
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Mold with a vented liner
Assignee: Armstrong World Industries Inc
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Filing: 1954-01-25
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Granted: 1955-05-10
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Expires: 1974-01-25
Abstract
No abstract record available.
Inventors
- 👤 George E Gard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:49
CPC Classifications
B; B29; B29C; B29C33/00; B29C33/02; B29C33/08; Y; Y10; Y10S; Y10S264/00; Y10S264/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
IN A MOLD FOR CONFINING A CHARGE OF DIELECTRIC MATERIAL DURING PROCESSING BY DIELECTRIC HEATING IN WHICH THE CHARGE OF MATERIAL AND THE MOLD ARE BOTH DIELECTRICALLY HEATED SIMULTANEOUSLY, THE COMBINATION OF A MOLD SIDE WALL FORMED OF A BACKING OF DIELECTRIC MATERIAL AND A LINER OF DIELECTRIC MATERIAL WHICH IS ONLY MINUTELY PERVIOUS TO THE PASSAGE OF MOISTURE, SAID LINER HAVING A SMOOTH AND SUBSTANTIALLY IMPERVIOUS FORMING SURFACE FOR ENGAGEMENT
Claim 2
Dependent Claim
71 words
IN A MOLD FOR CONFINING A CHARGE OF DIELECTRIC MATERIAL DURING PROCESSING BY DIELECTRIC HEATING IN WHICH THE CHARGE OF MATERIAL AND THE MOLD ARE BOTH DIELECTRICALLY HEATED SIMULTANEOUSLY, THE COMBINATION OF A MOLD SIDE WALL FORMED OF A BACKING OF DIELECTRIC MATERIAL AND A LINER OF DIELECTRIC MATERIAL WHICH IS ONLY MINUTELY PERVIOUS TO THE PASSAGE OF MOISTURE, SAID LINER HAVING A SMOOTH AND SUBSTANTIALLY IMPERVIOUS FORMING SURFACE FOR ENGAGEMENT
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-05-09 | 1958-11-08 | 1959-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-09 | 1962-11-08 | 1963-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-09 | 1966-11-08 | 1967-05-10 | $7700.00 | Window Closed / Lapsed |