Patent JPS6398142A successfully refreshed from Google Patents.
US3483093A
Expired / Lapsed
US
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Desalination processes and apparatus
Assignee: VWS Westgarth Ltd
•
Filing: 1969-01-07
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Granted: 1969-12-09
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Expires: 1989-01-07
Abstract
No abstract record available.
Inventors
- 👤 Peter Thomas Walker
- 👤 Ivan Henry Newson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:21
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/02; C02F1/04; C02F1/10; C02F1/06; Y; Y02; Y02A; Y02A20/00; Y02A20/124; Y10; Y10S; Y10S159/00; Y10S159/33; Y10S203/00; Y10S203/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3232847A
Cited
US3236747A
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US3298932A
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US3219554A
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US3337421A
Cited
GB1026375A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-08 | 1973-06-09 | 1973-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-08 | 1977-06-09 | 1977-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-08 | 1981-06-09 | 1981-12-09 | $7700.00 | Window Closed / Lapsed |