US3399708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Parallel flow passage, plate type evaporators
Assignee: SPX Flow Technology Crawley Ltd
•
Filing: 1966-04-07
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Granted: 1968-09-03
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Expires: 1986-04-07
Abstract
No abstract record available.
Inventors
- 👤 Usher John Dennis
- 👤 Linsdell Ronald Hugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:51
CPC Classifications
F; F28; F28F; F28F13/00; F28F13/06; F28F13/08; B; B01; B01D; B01D1/00; B01D1/22; B01D1/221; F28D; F28D9/00; F28D9/0031; F28D9/0043; F28D9/005; F28D9/0093; F28F3/00; F28F3/08; F28F3/083; F28D21/00; F28D2021/0019; F28D2021/0061; F28D2021/0064
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1200996A
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US2334959A
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US2562739A
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US2764233A
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US2960160A
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US3155565A
Cited
GB935542A
Cited
US3073380A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-03 | 1972-03-04 | 1972-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-03 | 1976-03-04 | 1976-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-03 | 1980-03-04 | 1980-09-03 | $7700.00 | Window Closed / Lapsed |