US3481835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple effect distillation apparatus
Assignee: General Electric Co
•
Filing: 1967-10-05
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Granted: 1969-12-02
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Expires: 1987-10-05
Abstract
No abstract record available.
Inventors
- 👤 Theodore C Carnavos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:16
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/14; B01D3/143; B01D3/148; B01D1/00; B01D1/26; Y; Y02; Y02A; Y02A20/00; Y02A20/124
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US378843A
Cited
US1524184A
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US2413292A
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US3249517A
Cited
US3303106A
Cited
US3304242A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-01 | 1973-06-02 | 1973-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-01 | 1977-06-02 | 1977-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-01 | 1981-06-02 | 1981-12-02 | $7700.00 | Window Closed / Lapsed |