US2194691A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heating system
Assignee: American Radiator and Standard Sanitary Corp
•
Filing: 1938-07-01
•
Granted: 1940-03-26
•
Expires: 1958-07-01
Abstract
No abstract record available.
Inventors
- 👤 Jr Edward S Cornell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:54
CPC Classifications
F; F24; F24D; F24D3/00; F24D3/02; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7869; Y10T137/7871; Y10T137/7874
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1943-03-26 | 1943-09-25 | 1944-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-03-26 | 1947-09-25 | 1948-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-03-26 | 1951-09-25 | 1952-03-26 | $7700.00 | Window Closed / Lapsed |