US3119147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for producing flexible styrene polymers
Assignee: Beazer East Inc
•
Filing: 1961-08-21
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Granted: 1964-01-28
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Expires: 1981-08-21
Abstract
No abstract record available.
Inventors
- 👤 Kracht Gerhart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:21
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/34; B29C44/56; B29K; B29K2025/00; Y; Y10; Y10S; Y10S264/00; Y10S264/04; Y10S425/00; Y10S425/812
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
APPARATUS FOR PRODUCING FLEXIBLE FOAMED STYRENE POLYMER SHEETS OF LOW DENSITY COMPRISING A HOUSING AND MEANS FOR DIVIDING SID HOUSING INTO AN AIR CHAMBER AND TWO STREAM CHAMBERS, MEANS FOR FLOWING AIR THROUGH SAID AIR CHAMBER, AND MEANS FOR INJECTING STEAM INTO SID STEAM CHAMBERS, SAID STEAM CHAMBERS INCLUDING A PAIR OF COACTING ROLLERS FOR CLOSING SAID STEAM CHAMBERS WHEREBY A SHEET OF FOAMED STYRENE POLYMER MAY BE PASSED THROUGH SAID ROLLERS TO BE CRUSHED THEREBY, THEN INTO SAID STEAM
Claim 2
Dependent Claim
80 words
APPARATUS FOR PRODUCING FLEXIBLE FOAMED STYRENE POLYMER SHEETS OF LOW DENSITY COMPRISING A HOUSING AND MEANS FOR DIVIDING SID HOUSING INTO AN AIR CHAMBER AND TWO STREAM CHAMBERS, MEANS FOR FLOWING AIR THROUGH SAID AIR CHAMBER, AND MEANS FOR INJECTING STEAM INTO SID STEAM CHAMBERS, SAID STEAM CHAMBERS INCLUDING A PAIR OF COACTING ROLLERS FOR CLOSING SAID STEAM CHAMBERS WHEREBY A SHEET OF FOAMED STYRENE POLYMER MAY BE PASSED THROUGH SAID ROLLERS TO BE CRUSHED THEREBY, THEN INTO SAID STEAM
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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) | 1967-01-27 | 1967-07-29 | 1968-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-27 | 1971-07-29 | 1972-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-27 | 1975-07-29 | 1976-01-28 | $7700.00 | Window Closed / Lapsed |