US3466150A
Expired / Lapsed
US
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Polycondensation reactor
Assignee: Vickers Zimmer AG
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Filing: 1965-06-01
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Granted: 1969-09-09
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Expires: 1985-06-01
Abstract
No abstract record available.
Inventors
- 👤 Manfred Dietze
- 👤 Wolfgang Kraft
- 👤 Hans Scheller
- 👤 Hansjurgen Ullrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:32
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/0006; B01J19/0013; B01J19/18; B01J19/1868; B01J19/1881; C; C08; C08G; C08G63/00; C08G63/78; C08G63/785; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00074; B01J2219/00087; B01J2219/00094; B01J2219/00103; B01J2219/00105; B01J2219/0011
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) | 1972-09-08 | 1973-03-10 | 1973-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-08 | 1977-03-10 | 1977-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-08 | 1981-03-10 | 1981-09-09 | $7700.00 | Window Closed / Lapsed |