Patent US3387069A successfully refreshed from Google Patents.
US3387069A
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Method for the manufacture of tube profiles from thermoplastics
Assignee: Individual
•
Filing: 1963-12-16
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Granted: 1968-06-04
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Expires: 1983-12-16
Abstract
No abstract record available.
Inventors
- 👤 Stohr Christian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:40
CPC Classifications
B; B26; B26D; B26D1/00; B29; B29C; B29C48/00; B29C48/001; B29C48/0022; B29C48/03; B29C48/09; B29C48/13; B29C48/25; B29C48/30; B29C48/302; B29C48/305; B29C48/31; B29C48/313; B29C48/32; B29C48/325; B29C48/33; B29C48/34; B29C2793/00; B29C2793/0027; B29C48/07; B29C48/08; B29C48/10; B29C48/12; B29C48/131; B29C48/16; B29C48/18; B29C48/21; B29C48/335; B29L; B29L2007/00; B29L2007/001; B29L2023/00; B29L2023/003; B29L2028/00; B29L2031/00; B29L2031/001; B29L2031/008
Claims Analysis
Total Claims: 0
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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) | 1971-06-04 | 1971-12-04 | 1972-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-04 | 1975-12-04 | 1976-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-04 | 1979-12-04 | 1980-06-04 | $7700.00 | Window Closed / Lapsed |