US3022982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchanger element and applications thereof
Assignee: Pont a Mousson SA
•
Filing: 1959-12-30
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Granted: 1962-02-27
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Expires: 1979-12-30
Abstract
No abstract record available.
Inventors
- 👤 Demalander Roger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:50
CPC Classifications
F; F28; F28F; F28F1/00; F28F1/10; F28F1/42; F28F1/422; F28F3/00; F28F3/02; F28F3/04; Y; Y10; Y10S; Y10S165/00; Y10S165/327; Y10S165/337; Y10S165/338
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1275492A
Cited
US2004252A
Cited
US2663170A
Cited
US2704062A
Cited
GB744963A
Cited
US2834582A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-26 | 1965-08-28 | 1966-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-26 | 1969-08-28 | 1970-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-26 | 1973-08-28 | 1974-02-27 | $7700.00 | Window Closed / Lapsed |