Patent US3286294A successfully refreshed from Google Patents.
Patent US3456293A successfully refreshed from Google Patents.
US3456293A
Expired / Lapsed
US
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Extrusion apparatus
Assignee: Agfa Gevaert NV
•
Filing: 1967-03-17
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Granted: 1969-07-22
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Expires: 1987-03-17
Abstract
No abstract record available.
Inventors
- 👤 Felix Frederik De Smedt
- 👤 Victor Alois Marinus
- 👤 Edwin August De Meyere
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:14
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/30; B29C48/305; B29C48/03; B29C48/07; B29C48/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2364435A
Cited
US2479804A
Cited
US2754544A
Cited
US2998624A
Cited
US3072962A
Cited
US3119150A
Cited
US3217358A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-21 | 1973-01-20 | 1973-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-21 | 1977-01-20 | 1977-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-21 | 1981-01-20 | 1981-07-22 | $7700.00 | Window Closed / Lapsed |