US2559272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchanger
Assignee: UNGARISCHE RADIATOREN FABRIKS
•
Filing: 1948-09-10
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Granted: 1951-07-03
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Expires: 1968-09-10
Abstract
No abstract record available.
Inventors
- 👤 Beck Jozsef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:22
CPC Classifications
F; F28; F28D; F28D1/00; F28D1/02; F28D1/04; F28D1/047; F28D1/0472; Y; Y10; Y10S; Y10S165/00; Y10S165/327; Y10S165/328; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49377; Y10T29/49378; Y10T29/49382
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US949216A
Cited
US1713456A
Cited
US2175394A
Cited
FR861085A
Cited
US2347957A
Cited
US2244800A
Cited
US2292033A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-02 | 1955-01-01 | 1955-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-02 | 1959-01-01 | 1959-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-02 | 1963-01-01 | 1963-07-03 | $7700.00 | Window Closed / Lapsed |