Patent US1920779A successfully refreshed from Google Patents.
US1920779A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiator
Assignee: American Radiator and Standard Sanitary Corp
•
Filing: 1929-12-12
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Granted: 1933-08-01
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Expires: 1949-12-12
Abstract
No abstract record available.
Inventors
- 👤 Irving T Bennett
- 👤 Frank C Reynolds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:38
CPC Classifications
F; F28; F28F; F28F1/00; F28F1/10; F28F1/12; F28F1/24; F28F1/30; F28D; F28D1/00; F28D1/02; F28D1/0233; F28D1/04; F28D1/053
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) | 1936-07-31 | 1937-01-30 | 1937-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-07-31 | 1941-01-30 | 1941-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-07-31 | 1945-01-30 | 1945-08-01 | $7700.00 | Window Closed / Lapsed |