Patent FR1102328A successfully refreshed from Google Patents.
Patent US3492698A successfully refreshed from Google Patents.
US3492698A
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Centrifugal casting apparatus for forming a cast wall member extending transversely across an elongated bundle of substantially parallel hollow filaments of a fluid permeation separation apparatus
Assignee: EIDP Inc
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Filing: 1968-04-29
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Granted: 1970-02-03
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Expires: 1988-04-29
Abstract
No abstract record available.
Inventors
- 👤 James Edward Geary Jr
- 👤 William Edward Harsch
- 👤 John Murdock Maxwell
- 👤 Richard Donald Rego
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:40
CPC Classifications
B; B29; B29C; B29C39/00; B29C39/02; B29C39/04; B29C39/08; B01; B01D; B01D63/00; B01D63/02; B01D63/021; B01D63/022; B01D63/0222; B01D63/0231; B29C70/00; B29C70/04; B29C70/28; B29C70/30; B29C70/34; B29C70/347; B29C70/54; B29C70/542; B29C70/68; B29C70/84; B29C70/845; B29L; B29L2031/00; B29L2031/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1317120A
Cited
US2597934A
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US2550858A
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US2633605A
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US2686951A
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US3046631A
Cited
US3297802A
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US3382541A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-02 | 1973-08-04 | 1974-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-02 | 1977-08-04 | 1978-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-02 | 1981-08-04 | 1982-02-03 | $7700.00 | Window Closed / Lapsed |