Patent US3298062A successfully refreshed from Google Patents.
US3298062A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extrusion dies
Assignee: Brown and Williamson Holdings Inc
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Filing: 1965-05-04
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Granted: 1967-01-17
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Expires: 1985-05-04
Abstract
No abstract record available.
Inventors
- 👤 Nicholl Peter James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:52
CPC Classifications
D; D01; D01D; D01D4/00; D01D4/02; A; A24; A24B; A24B3/00; A24B3/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
A DIE FOR THE EXTRUSION OF PLASTIC MATERIAL COMPRISING A DIE CHANNEL, MEANS FOR SUPPLYING THE MATERIAL T SAID CHANNEL, AND DIE SPLITS FORMED BY SERRATIONS AT ONE EDGE OF A THIN METAL SHEET DISPOSED IN REPLACEABLE MANNER ON ONE SIDE OF SAID DIE CHANNEL.
Claim 2
Dependent Claim
45 words
A DIE FOR THE EXTRUSION OF PLASTIC MATERIAL COMPRISING A DIE CHANNEL, MEANS FOR SUPPLYING THE MATERIAL T SAID CHANNEL, AND DIE SPLITS FORMED BY SERRATIONS AT ONE EDGE OF A THIN METAL SHEET DISPOSED IN REPLACEABLE MANNER ON ONE SIDE OF SAID DIE CHANNEL.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |