US3031271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixing apparatus
Assignee: Bayer AG
•
Filing: 1957-05-09
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Granted: 1962-04-24
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Expires: 1977-05-09
Abstract
No abstract record available.
Inventors
- 👤 Weinbrenner Erwin
- 👤 Hoppe Peter
- 👤 Breer Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:39
CPC Classifications
F; F16; F16B; F16B12/00; F16B12/10; F16B12/28; F16B12/30; B; B01; B01F; B01F35/00; B01F35/10; B01F35/145; B01F35/1452; B29; B29B; B29B7/00; B29B7/74; B29B7/7476; B29B7/7485; C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/0895; Y; Y10; Y10S; Y10S521/00; Y10S521/917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
AN APPARATUS FOR MIXING THE COMPONENTS OF A POLYURETHANE PLASTIC WHICH COMPRISES A FIRST MIXING CHAMBER, SAID CHAMBER HAVING APLURALITY OF INLETS FOR THE INTRODUCTION OF THE COMPONENTS TO SAID FIRST MIXING CHAMBER, AT LEAST ONE OF SAID INLETS BEING AN INJECTION NOZZLE AND AN OUTLET MEANS, A SECOND CHAMBER SPACED FROM SAID FIRST MIXING CHAMBER AND COMPRISING A CYLINDER, A RECIPROCATING PISTON DISPOSED WITHIN SAID CYLINDER, AN INLET MEANS INCLUDING AT LEAST ONE INLET TO SAID CYLINDER, SAID INLET MEANS CONNECTED BY A CONDUIT TO THE OUTLET MEANS OF SAID
Claim 2
Independent Claim
91 words
AN APPARATUS FOR MIXING THE COMPONENTS OF A POLYURETHANE PLASTIC WHICH COMPRISES A FIRST MIXING CHAMBER, SAID CHAMBER HAVING APLURALITY OF INLETS FOR THE INTRODUCTION OF THE COMPONENTS TO SAID FIRST MIXING CHAMBER, AT LEAST ONE OF SAID INLETS BEING AN INJECTION NOZZLE AND AN OUTLET MEANS, A SECOND CHAMBER SPACED FROM SAID FIRST MIXING CHAMBER AND COMPRISING A CYLINDER, A RECIPROCATING PISTON DISPOSED WITHIN SAID CYLINDER, AN INLET MEANS INCLUDING AT LEAST ONE INLET TO SAID CYLINDER, SAID INLET MEANS CONNECTED BY A CONDUIT TO THE OUTLET MEANS OF SAID
References Cited (Backward Citations)
US1492019A
Cited
US1956082A
Cited
US2203980A
Cited
US2642403A
Cited
US2764565A
Cited
US2706108A
Cited
US2788337A
Cited
US2885268A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-23 | 1965-10-23 | 1966-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-23 | 1969-10-23 | 1970-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-23 | 1973-10-23 | 1974-04-24 | $7700.00 | Window Closed / Lapsed |