US3706827A
Expired / Lapsed
US
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Method for flow rate control
Assignee: Imperial Chemical Industries Ltd
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Filing: 1971-06-02
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Granted: 1972-12-19
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Expires: 1991-06-02
Abstract
Abstract A method and apparatus which allows a substantially constant flow rate of viscous material through a die while permitting vibrations or interruptions in the flow at an earlier stage, by means of providing for changes in the available capacity for the viscous material prior to the die.
Inventors
- 👤 Robert Edward Nott
- 👤 David Robin Lander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:13
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/36; B29C48/50; B29C48/69; B29C48/691; B29C48/6912; B29C48/92; B29C2948/00; B29C2948/92; B29C2948/92504; B29C2948/9258; B29C2948/926; B29C2948/92819; B29C2948/92857; B29C2948/92904; B29C2948/92961; B29C48/03; B29C48/05; B29C48/07; B29C48/08
Claims Analysis
Total Claims: 0
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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) | 1975-12-19 | 1976-06-19 | 1976-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-19 | 1980-06-19 | 1980-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-19 | 1984-06-19 | 1984-12-19 | $7700.00 | Window Closed / Lapsed |