US3498508A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for extruding a length of material
Assignee: Rhone Poulenc SA
•
Filing: 1967-04-03
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Granted: 1970-03-03
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Expires: 1987-04-03
Abstract
No abstract record available.
Inventors
- 👤 Jacques Francisoud
- 👤 Gilbert Niogret
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:52
CPC Classifications
B; B65; B65B; B65B39/00; B65B39/001; B65B39/004; B65B3/00; B65B3/04; B65B3/16; B67; B67C; B67C3/00; B67C3/02; B67C3/22; B67C3/26; B67C2003/2688
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) | 1973-03-02 | 1973-09-01 | 1974-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-02 | 1977-09-01 | 1978-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-02 | 1981-09-01 | 1982-03-03 | $7700.00 | Window Closed / Lapsed |