US3510267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polycondensation reactor
Assignee: Vickers Zimmer AG
•
Filing: 1967-09-25
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Granted: 1970-05-05
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Expires: 1987-09-25
Abstract
No abstract record available.
Inventors
- 👤 Manfred Dietze
- 👤 Franz Hauer
- 👤 Wolfgang Kraft
- 👤 Heinz Kuehne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:35
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/18; B01J19/1862; B01F; B01F35/00; B01F35/50; B01F35/53; B01F35/531; B01F35/5311; B01F27/00; B01F27/80; B01F27/93; C; C08; C08G; C08G63/00; C08G63/78; C08G63/785; B01F27/05; B01F27/11; B01F27/19; B01F27/191; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00074; B01J2219/00087; B01J2219/00094; B01J2219/00189
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1732805A
Cited
US2073026A
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US2636555A
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US2686110A
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US2800411A
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US3254070A
Cited
US3157619A
Cited
US3271272A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-04 | 1973-11-03 | 1974-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-04 | 1977-11-03 | 1978-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-04 | 1981-11-03 | 1982-05-05 | $7700.00 | Window Closed / Lapsed |