US2963741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable extrusion die
Assignee: Dow Chemical Co
•
Filing: 1956-01-26
•
Granted: 1960-12-13
•
Expires: 1976-01-26
Abstract
No abstract record available.
Inventors
- 👤 Murrey O Lungstreth
- 👤 James E Tollar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:06
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/30; B29C48/32; B29C48/325; B29C48/03; B29C48/07; B29C48/08; B29C48/09; B29C48/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2387718A
Cited
US2718661A
Cited
US2753596A
Cited
US2686931A
Cited
US2765492A
Cited
US2769200A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |