Patent US3522629A successfully refreshed from Google Patents.
US3522629A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extrusion press for the manufacture of hoses or tubes made of thermoplastic material
Assignee: Individual
•
Filing: 1968-06-18
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Granted: 1970-08-04
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Expires: 1988-06-18
Abstract
No abstract record available.
Inventors
- 👤 Erhard Langecker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:28
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/03; B29C48/09; B29C48/25; B29C48/30; B29C48/32; B29C48/34; B29C48/36; B29C48/475; B29C48/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2633602A
Cited
US3078507A
Cited
US3111713A
Cited
US3147515A
Cited
US3245111A
Cited
US3386132A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-03 | 1974-02-02 | 1974-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-03 | 1978-02-02 | 1978-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-03 | 1982-02-02 | 1982-08-04 | $7700.00 | Window Closed / Lapsed |