Patent US1662236A successfully refreshed from Google Patents.
US1662236A
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Steam and hot-water radiator
Assignee: Individual
•
Filing: 1926-09-11
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Granted: 1928-03-13
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Expires: 1946-09-11
Abstract
No abstract record available.
Inventors
- 👤 Coupland Ernst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:39
CPC Classifications
F; F24; F24D; F24D9/00; F24D9/02; F28; F28D; F28D1/00; F28D1/02; F28D1/04; F28D1/053; F28D1/05316; F28F; F28F9/00; F28F9/02; F28F9/026; F28F9/027; F28F9/0275; F28D21/00; F28D2021/0019; F28D2021/0035; F28D2021/0061; F28D2021/0063; F28F2009/0285
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) | 1931-03-13 | 1931-09-12 | 1932-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-03-13 | 1935-09-12 | 1936-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-03-13 | 1939-09-12 | 1940-03-13 | $7700.00 | Window Closed / Lapsed |