US3186033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable air ring
Assignee: Millennium Petrochemicals Inc
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Filing: 1962-10-23
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Granted: 1965-06-01
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Expires: 1982-10-23
Abstract
No abstract record available.
Inventors
- 👤 Jr James B Newman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:23
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/88; B29C48/885; B29C48/03; B29C48/09; B29C48/10; B29C48/30; B29C48/32; B29C48/335; B29C48/911; B29C48/9115; B29C48/912; B29C48/06; B29C48/345
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
110 words
IN A COMBINATION; A FIRST AND SECOND EXTRUSION DIE MOUNTED ON AND CONNECTED TO A COMMON EXTUDER AND A FIRST AND SECOND AIR RING FOR RECEIVING AND COOLING THE FILM EXTRUDED BY SAID FIRST AND SECOND EXTRUSION DIES RESPECTIVELY; A COMMON AIR RECEIVING FRAME; SAID FIRST AND SECOND AIR RINGS BEING ADJUSTABLY MOUNTED ON SAID COMMOM FRAME; SAID COMMON FRAME DEFINING AIRD SUPPLY CHANNEL MEANS FOR SUPPLYING AIR UNDER PRESSURE AROUND THE PERIPHERY OF EACH OF SAID FIRST AND SECOND AIR RINGS; SAID FIRST AND SECOND AIR RINGS BEING MOVABLE TOWARD AND AWAY FROM ONE ANOTHER WHEREBY THE CENTERTO CENTER DISTANCE OF SAID FIRST AND SECOND AIR RINGS IS ADJUSTABLE.
References Cited (Backward Citations)
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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) | 1968-05-31 | 1968-11-30 | 1969-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-31 | 1972-11-30 | 1973-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-31 | 1976-11-30 | 1977-06-01 | $7700.00 | Window Closed / Lapsed |