US2676001A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plate type heat exchange unit providing edge radiation
Assignee: Sundstrand Heat Transfer Inc
•
Filing: 1950-09-05
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Granted: 1954-04-20
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Expires: 1970-09-05
Abstract
No abstract record available.
Inventors
- 👤 Thomas H Polad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:31
CPC Classifications
F; F28; F28F; F28F1/00; F28F1/10; F28F1/12; F28F1/14; F28F1/22; F28D; F28D7/00; F28D7/08; F28D7/082; F28D7/085; F28D7/087; F28F2255/00; F28F2255/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1697600A
Cited
US1880877A
Cited
US1833291A
Cited
US2268885A
Cited
US2471582A
Cited
US2567716A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-19 | 1957-10-19 | 1958-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-19 | 1961-10-19 | 1962-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-19 | 1965-10-19 | 1966-04-20 | $7700.00 | Window Closed / Lapsed |