US3504068A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for molding completely expanded polyolefin particles
Assignee: BASF SE
•
Filing: 1967-12-13
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Granted: 1970-03-31
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Expires: 1987-12-13
Abstract
No abstract record available.
Inventors
- 👤 Johann Zizlsperger
- 👤 Fritz Stastny
- 👤 Gilbert Beck
- 👤 Hermann Tatzel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:33
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/34; B29C44/3461; B29C44/02; B29C44/10; B29C44/3492; B29C44/3496; B29C67/00; B29C67/20; B29C67/207; C; C08; C08J; C08J9/00; C08J9/22; C08J9/228; C08J9/232; C08J9/236; C08J2323/00; C08J2323/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3217364A
Cited
US3328497A
Cited
US3126432A
Cited
US3255286A
Cited
US3278658A
Cited
US3331899A
Cited
US3396923A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-30 | 1973-09-29 | 1974-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-30 | 1977-09-29 | 1978-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-30 | 1981-09-29 | 1982-03-31 | $7700.00 | Window Closed / Lapsed |