US2696368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiator construction for use in convector heating systems
Assignee: Individual
•
Filing: 1953-02-03
•
Granted: 1954-12-07
•
Expires: 1973-02-03
Abstract
No abstract record available.
Inventors
- 👤 Ray C Edwards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:09
CPC Classifications
F; F24; F24D; F24D19/00; F24D19/02; F24D19/04; F28; F28D; F28D1/00; F28D1/02; F28D1/04; F28D1/053
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US979989A
Cited
US1633032A
Cited
US1971841A
Cited
US2116302A
Cited
US2101797A
Cited
US2113240A
Cited
US2501147A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-06 | 1958-06-07 | 1958-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-06 | 1962-06-07 | 1962-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-06 | 1966-06-07 | 1966-12-07 | $7700.00 | Window Closed / Lapsed |