Patent US3404661A successfully refreshed from Google Patents.
US3404661A
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Evaporation system
Assignee: Unisys Corp
•
Filing: 1965-08-26
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Granted: 1968-10-08
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Expires: 1985-08-26
Abstract
No abstract record available.
Inventors
- 👤 Joseph S Mathias
- 👤 Alfred A Adomines
- 👤 Richard H Storck
- 👤 Mcnamara John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:49
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/22; C23C14/56; Y; Y10; Y10S; Y10S414/00; Y10S414/135; Y10S414/137; Y10S414/138; Y10S414/139
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2239642A
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US2360505A
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US2930347A
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US2986115A
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US3148631A
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US3228794A
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US3238918A
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US3250694A
Cited
US3300065A
Cited
US3314395A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-08 | 1972-04-08 | 1972-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-08 | 1976-04-08 | 1976-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-08 | 1980-04-08 | 1980-10-08 | $7700.00 | Window Closed / Lapsed |