US2610835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plate heat exchanger
Assignee: Alfa Laval Holdings Amsterdam AB
•
Filing: 1947-08-29
•
Granted: 1952-09-16
•
Expires: 1967-08-29
Abstract
No abstract record available.
Inventors
- 👤 Hytte Robert P Larsson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:13
CPC Classifications
F; F28; F28D; F28D9/00; F28D9/0031; F28F; F28F3/00; F28F3/08; F28F3/083
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE216789C
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DE63757C
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US448521A
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GB396696A
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US1992097A
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DE692730C
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FR838905A
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US2428880A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-16 | 1956-03-17 | 1956-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-16 | 1960-03-17 | 1960-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-16 | 1964-03-17 | 1964-09-16 | $7700.00 | Window Closed / Lapsed |