US3319937A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for making foams
Assignee: Hudson Foam Plastics Corp
•
Filing: 1960-09-15
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Granted: 1967-05-16
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Expires: 1980-09-15
Abstract
No abstract record available.
Inventors
- 👤 Christopher L Wilson
- 👤 Don G Hutton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:06
CPC Classifications
B; B29; B29B; B29B7/00; B29B7/30; B29B7/34; B29B7/38; B29B7/40; B29B7/44; B29B7/74; B29B7/7404; B29B7/7409; B29B7/7428
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
APPARATUS FOR MIXING A PLURALITY OF LIQUID CHEMICAL REACTANTS ADAPTED TO REACT TO FORM A FOAMED PRODUCT COMPRISING A SINGLE CHAMBERED CYLINDRICAL MIXING HEAD HAVING A PLURALITY OF CLOSELY SPACED INLETS ALONG THE AXIS THEREOF AND AN OUTLET AT THE LOWER END THEREOF, A PADDLE SHAFT ROTATABLY AND AXIALLY MOUNTED WITHIN SAID HEAD, PADDLE MEMBERS EXTENDING RADIALLY FROM SAID SHAFT TOWARD THE INNER SURFACE OF SAID HEAD, AND RADIALLY DISPOSED BAFFLE MEMBERS ARRANGED ABOUT THE INNER SURFACE OF SAID HEAD, SAID BAFFLE MEMBERS AND PADDLE MEMBERS HAVING OPPOSED EDGE PORTIONS IN CLOSELY SPACED RELATION.
Claim 2
Dependent Claim
94 words
APPARATUS FOR MIXING A PLURALITY OF LIQUID CHEMICAL REACTANTS ADAPTED TO REACT TO FORM A FOAMED PRODUCT COMPRISING A SINGLE CHAMBERED CYLINDRICAL MIXING HEAD HAVING A PLURALITY OF CLOSELY SPACED INLETS ALONG THE AXIS THEREOF AND AN OUTLET AT THE LOWER END THEREOF, A PADDLE SHAFT ROTATABLY AND AXIALLY MOUNTED WITHIN SAID HEAD, PADDLE MEMBERS EXTENDING RADIALLY FROM SAID SHAFT TOWARD THE INNER SURFACE OF SAID HEAD, AND RADIALLY DISPOSED BAFFLE MEMBERS ARRANGED ABOUT THE INNER SURFACE OF SAID HEAD, SAID BAFFLE MEMBERS AND PADDLE MEMBERS HAVING OPPOSED EDGE PORTIONS IN CLOSELY SPACED RELATION.
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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) | 1970-05-15 | 1970-11-14 | 1971-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-15 | 1974-11-14 | 1975-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-15 | 1978-11-14 | 1979-05-16 | $7700.00 | Window Closed / Lapsed |