US2731669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sponge rubber mold
Assignee: Dayton Rubber Co
•
Filing: 1950-03-02
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Granted: 1956-01-24
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Expires: 1970-03-02
Abstract
No abstract record available.
Inventors
- 👤 Talalay Joseph Anton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:57
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/34; B29C44/58; B29C33/00; B29C33/0055; B29C33/0038; B29C33/10; B29K; B29K2021/00; B29K2105/00; B29K2105/04; B29K2105/045; Y; Y10; Y10S; Y10S425/00; Y10S425/025; Y10S425/047
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
117 words
MOLDING APPARATUS FOR FORMING SHAPED, CELLULAR ARTICLES OF FOAMED, AQUEOUS DISPERSION OF RUBBER OR RUBBERLIKE MATERIAL COMPRISING A MOLD HAVING A CAVITY THEREIN FOR RECEIVING THE DISPERSION AND FORMING IT INTO AN ARTICLE OF THE DESIRED SHAPE, SAID MOLD INCLUDING A PLURALITY OF MOLD SECTIONS EACH PROVIDED WITH A PERIPHERALLY EXTENDING LIP OF SUBSTANTIAL WIDTH ADAPTED TO MEET WITH A LIP OF ANOTHER MOLD SECTION WHEN THE MOLD IS CLOSED AND CONFINE THE DISPERSION WITHIN THE CAVITY OF THE MOLD, AND MEANS BETWEEN SAID LIPS FOR PERMITTING AIR AND GAS TO ESCAPE FROM THE MOLD CAVITY DURING EXPANSION OF THE FOAMED DISPERSION AND FOR INTERCEPTING ANY OF THE FOAMED DISPERSION ATTEMPTING TO FOLLOW THE AIR AND GAS
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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) | 1959-01-23 | 1959-07-25 | 1960-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-23 | 1963-07-25 | 1964-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-23 | 1967-07-25 | 1968-01-24 | $7700.00 | Window Closed / Lapsed |