Patent US3551947A successfully refreshed from Google Patents.
US3551947A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for filling molds with polyurethane
Assignee: Control Building Systems Inc
•
Filing: 1968-09-03
•
Granted: 1971-01-05
•
Expires: 1988-09-03
Abstract
Abstract APPARATUS FOR FORMING OBJECTS WITH FOAM-IN-PLACE PLASTICS USING A MOVABLE PROBE AND FURTHER COMPRISING MEANS FOR MOVING THE PROBE AT A CONTROLLED RATE, A MIXING HEAD CONNECTED TO SAID PROBE FOR CONBINING VARIOUS COMPONENTS USED TO PRODUCE A POLYURETHANE FOAM, MEANS FOR FEEDING EACH OF THE ESSENTIAL COMPONENTS INTO SAID MIXING HEAD, MEANS FOR MEASURING THE SPEED AT WHICH EACH COMPONENT, RESPECTIVELY, IS FED TO SAID MIXING HEAD AND SIMULTANEOUSLY PRODUCING A SIGNAL IN PROPORTION TO THE COM- BINED MASS FLOW RATE OT THE COMPONENTS, AND MEANS RESPONSIVE TO SAID SIGNAL FOR MOVING THE PROBE AT A CONTROLLED RATE.
Inventors
- 👤 Roger G Jennings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:46
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/34; B29C44/60; B29C44/36; B29C44/38; B29C44/385; B29C44/386
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |