US3538549A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plasticizing unit for injection-molding machine
Assignee: Arburg GmbH and Co KG
•
Filing: 1967-04-10
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Granted: 1970-11-10
•
Expires: 1987-04-10
Abstract
No abstract record available.
Inventors
- 👤 Karl Hehl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:38
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/46; B29C45/47; B29C45/50; B29C45/1777
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3146287A
Cited
US3335457A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-09 | 1974-05-11 | 1974-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-09 | 1978-05-11 | 1978-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-09 | 1982-05-11 | 1982-11-10 | $7700.00 | Window Closed / Lapsed |