US2568818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Baseboard radiator
Assignee: Individual
•
Filing: 1946-10-11
•
Granted: 1951-09-25
•
Expires: 1966-10-11
Abstract
No abstract record available.
Inventors
- 👤 Arthur C O'day
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:12
CPC Classifications
F; F24; F24D; F24D5/00; F24D5/06; F24D5/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2243281A
Cited
US1776080A
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US1633032A
Cited
US1744517A
Cited
US1898327A
Cited
US1914197A
Cited
US2036961A
Cited
US2228550A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-24 | 1955-03-26 | 1955-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-24 | 1959-03-26 | 1959-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-24 | 1963-03-26 | 1963-09-25 | $7700.00 | Window Closed / Lapsed |