US3486196A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the production of multilayer tubes from thermoplastics
Assignee: Kalle GmbH and Co KG
•
Filing: 1966-03-31
•
Granted: 1969-12-30
•
Expires: 1986-03-31
Abstract
No abstract record available.
Inventors
- 👤 Ludwig Klenk
- 👤 Walter Seifried
- 👤 Hans Strutzel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:10
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/88; B29C48/90; B29C48/908; B29C48/001; B29C48/0013; B29C48/0015; B29C48/0016; B29C48/03; B29C48/07; B29C48/08; B29C48/09; B29C48/10; B29C48/16; B29C48/18; B29C48/21; B29C48/901; B29C48/0018; B29C48/0019
Claims Analysis
Total Claims: 0
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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) | 1972-12-29 | 1973-06-30 | 1973-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-29 | 1977-06-30 | 1977-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-29 | 1981-06-30 | 1981-12-30 | $7700.00 | Window Closed / Lapsed |