US3137151A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for continuous treatment of moving strands
Assignee: Wyeth Holdings LLC
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Filing: 1960-09-22
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Granted: 1964-06-16
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Expires: 1980-09-22
Abstract
No abstract record available.
Inventors
- 👤 Yoshiike Ryuji
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:35
CPC Classifications
D; D06; D06C; D06C29/00; D01; D01D; D01D10/00; D01D10/02; D01D10/04; D01D10/0436; D01D10/0445; D06B; D06B3/00; D06B3/10; D06B3/16
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
96 words
A PRESSURE-SEALING DEVICE FOR CONTINUOUSLY PASSING MOVING STRANDS OF ELONGATED MATERIAL THERETHROUGH BETWEEN ZONES MAINTAINED AT DIFFERENT PRESSURES COMPRISING: A HOLLOW CASING HAVING AN INLET OPENING AT ONE END THEREOF AND AN OUTLET OPENING AT ANOTHER END THEREOF, EACH OF SAID OPENINGS COMMUNICATING WITH ONE OF SAID ZONES; A PLURALITY OF GATE MEANS WITHIN SAID HOLLOW CASING SUBDIVIDING SAID HOLLOW CASING INTO A PLURALITY OF CHAMBERS SEQUENTIALLY ARRANGED BETWEEN SAID INLET OPENING AND SAID OUTLET OPENING; AND MEANS FOR SUPPLYING FLUID TO EACH OF SAID CHAMBERS AT A PRESSURE INTERMEDIATE THE PRESSURES ADJACENT TO SAID 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) | 1967-06-16 | 1967-12-16 | 1968-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-16 | 1971-12-16 | 1972-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-16 | 1975-12-16 | 1976-06-16 | $7700.00 | Window Closed / Lapsed |