Patent US3441501A successfully refreshed from Google Patents.
US3441501A
Expired / Lapsed
US
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Water removal from watercontaining media
Assignee: Cyprus Amax Minerals Co
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Filing: 1966-09-06
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Granted: 1969-04-29
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Expires: 1986-09-06
Abstract
No abstract record available.
Inventors
- 👤 Jeane Segall
- 👤 Leonard M Shorr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:46
CPC Classifications
B; B01; B01D; B01D71/00; B01D71/06; B01D71/44; C; C08; C08F; C08F30/00; C08F30/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3234125A
Cited
US3234126A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-28 | 1972-10-28 | 1973-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-28 | 1976-10-28 | 1977-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-28 | 1980-10-28 | 1981-04-29 | $7700.00 | Window Closed / Lapsed |