Patent US3442002A successfully refreshed from Google Patents.
US3442002A
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US
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Method of manufacture of fluid separation apparatus
Assignee: EIDP Inc
•
Filing: 1965-12-22
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Granted: 1969-05-06
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Expires: 1985-12-22
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
2026-10-22 20:47
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/68; B29C70/84; B29C70/845; B01; B01D; B01D63/00; B01D63/02; B01D63/021; B01D63/022; B01D63/0221; B01D63/0233; B01D65/00; B01D65/10; B01D65/106; B29C39/00; B29C39/02; B29C39/04; B29C39/08; B29C61/00; B29C61/006; B29C70/04; B29C70/28; B29C70/30; B29C70/34; B29C70/347; B29C70/54; B29C70/542; D; D04; D04B; D04B9/00; D04B9/42; D04B9/44; B29L; B29L2031/00; B29L2031/14; Y; Y02; Y02A; Y02A20/00; Y02A20/124; Y02A20/131; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/4987
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2741884A
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US3070866A
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US3228877A
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US3228876A
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US3200180A
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US3226908A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-05 | 1972-11-04 | 1973-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-05 | 1976-11-04 | 1977-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-05 | 1980-11-04 | 1981-05-06 | $7700.00 | Window Closed / Lapsed |