US3073533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for producing plastics
Assignee: Bayer AG
•
Filing: 1957-05-06
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Granted: 1963-01-15
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Expires: 1977-05-06
Abstract
No abstract record available.
Inventors
- 👤 Weinbrenner Erwin
- 👤 Hoppe Peter
- 👤 Breer Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:00
CPC Classifications
B; B29; B29B; B29B7/00; B29B7/74; B29B7/76; B29B7/7438; B29B7/7447; B29B7/7404; B29B7/7409; B29B7/80; B29B7/801; B29B7/30; B29B7/58; B29B7/72; B29B7/728
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
A MIXING APPARATUS FOR INTIMATELY MIXING THE REACTION COMPONENTS OF A POLYURETHANE PLASTIC WHICH COMPRISES A HOUSING, AN INJECTION MEANS DISPOSED WITHIIN SAID HOUSING FOR INTRODUCING THE LESS VISCOUS REACTION COMPONENT INTO AN INOCULATION CHAMBER, CONDUIT MEANS PROVIDED THROUGH SAID HOUSING TO INTRODUCE THE MORE VISCOUS REACTION COMPONENT INTO SAID INOCULATION CHAMBER
Claim 2
Dependent Claim
52 words
A MIXING APPARATUS FOR INTIMATELY MIXING THE REACTION COMPONENTS OF A POLYURETHANE PLASTIC WHICH COMPRISES A HOUSING, AN INJECTION MEANS DISPOSED WITHIIN SAID HOUSING FOR INTRODUCING THE LESS VISCOUS REACTION COMPONENT INTO AN INOCULATION CHAMBER, CONDUIT MEANS PROVIDED THROUGH SAID HOUSING TO INTRODUCE THE MORE VISCOUS REACTION COMPONENT INTO SAID INOCULATION CHAMBER
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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) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |