US3064947A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Involute flat tube and plate fin radiator
Assignee: RTX Corp
•
Filing: 1959-02-20
•
Granted: 1962-11-20
•
Expires: 1979-02-20
Abstract
No abstract record available.
Inventors
- 👤 Edward C Wynne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:53
CPC Classifications
F; F28; F28F; F28F1/00; F28F1/02; F28D; F28D1/00; F28D1/02; F28D1/04; F28D1/047; F28D1/0471; F28D7/00; F28D7/0058; F28D7/08; F28D9/00; F28D9/0012; F28D9/0018; Y; Y10; Y10S; Y10S165/00; Y10S165/355; Y10S165/40; Y10S165/427; Y10S165/429; Y10S165/431
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2162956A
Cited
US2360094A
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US2479071A
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US2547619A
Cited
US2828608A
Cited
US2880577A
Cited
US2870608A
Cited
GB805545A
Cited
US2869834A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-19 | 1966-05-21 | 1966-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-19 | 1970-05-21 | 1970-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-19 | 1974-05-21 | 1974-11-20 | $7700.00 | Window Closed / Lapsed |