Patent US2982993A successfully refreshed from Google Patents.
US2982993A
Expired / Lapsed
US
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Apparatus for producing tubes of synthetic material
Assignee: OSSBERGER TURBINENFABRIK
•
Filing: 1957-06-03
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Granted: 1961-05-09
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Expires: 1977-06-03
Abstract
No abstract record available.
Inventors
- 👤 Jacobi Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:34
CPC Classifications
B; B29; B29D; B29D23/00; B29D23/20; B29C; B29C48/00; B29C48/03; B29C48/09; B29C48/25; B29C48/30; B29C48/32; B29C48/36; B29C48/475; B29C2949/00; B29C2949/30; B29C2949/3032; B29C2949/3041; B29L; B29L2023/00; B29L2023/20
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) | 1964-05-08 | 1964-11-07 | 1965-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-08 | 1968-11-07 | 1969-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-08 | 1972-11-07 | 1973-05-09 | $7700.00 | Window Closed / Lapsed |