US3131426A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for curing foamed materials
Assignee: Dow Chemical Co
•
Filing: 1961-04-25
•
Granted: 1964-05-05
•
Expires: 1981-04-25
Abstract
No abstract record available.
Inventors
- 👤 Legler Bobby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:26
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/34; B29C44/56; Y; Y10; Y10S; Y10S425/00; Y10S425/019
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
AN APPARATUS COMPRISING: A PAIR OF SHELL-LIKE MEMBERS APPLIED TO OPEN AND CLOSE UPON EACH OTHER, A FLEXIBLE EXPANDABLE IMPEVIOUS DIAPHRAGM FIXEDLY MOUNTED WITHIN ONE OF SAID SHELL-LIKE MEMBERS IN A POSITION SO THAT WHEN THE SHELL-LIKE MEMBERS ARE IN CLOSED POSITION THE SAID DIAPHRAGM SEPARATES THE INTERIOR INTO TWO FLUIDTIGHT CHAMBERS, MEANS ASSOCIATED WITH EACH OF SAID SO DEFINED CHAMBERS TO PROVIDE MOTIVATING FLUID TO SAID CHAMBERS; MEANS ASSOCIATED WITH EAACH OF SAID CHAMBERS TO EXHAUST SAID MOTIVATING FLUID FROM SAID CHAMBERS.
Claim 2
Independent Claim
83 words
AN APPARATUS COMPRISING: A PAIR OF SHELL-LIKE MEMBERS APPLIED TO OPEN AND CLOSE UPON EACH OTHER, A FLEXIBLE EXPANDABLE IMPEVIOUS DIAPHRAGM FIXEDLY MOUNTED WITHIN ONE OF SAID SHELL-LIKE MEMBERS IN A POSITION SO THAT WHEN THE SHELL-LIKE MEMBERS ARE IN CLOSED POSITION THE SAID DIAPHRAGM SEPARATES THE INTERIOR INTO TWO FLUIDTIGHT CHAMBERS, MEANS ASSOCIATED WITH EACH OF SAID SO DEFINED CHAMBERS TO PROVIDE MOTIVATING FLUID TO SAID CHAMBERS; MEANS ASSOCIATED WITH EAACH OF SAID CHAMBERS TO EXHAUST SAID MOTIVATING FLUID FROM SAID CHAMBERS.
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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) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |