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US3543333A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of synthetic resin rails
Assignee: KraussMaffei Extrusion GmbH
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Filing: 1968-03-18
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Granted: 1970-12-01
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Expires: 1988-03-18
Abstract
No abstract record available.
Inventors
- 👤 Dietmar Anders
- 👤 Hans Frolich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:39
CPC Classifications
B; B29; B29C; B29C43/00; B29C43/22; B29C43/24; B29C48/00; B29C48/03; B29C48/07; B29C48/08; B29C48/25; B29C48/30; B29C48/35
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) | 1973-11-30 | 1974-06-01 | 1974-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-30 | 1978-06-01 | 1978-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-30 | 1982-06-01 | 1982-12-01 | $7700.00 | Window Closed / Lapsed |