US1888900A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiator
Assignee: Individual
•
Filing: 1928-04-11
•
Granted: 1932-11-22
•
Expires: 1948-04-11
Abstract
No abstract record available.
Inventors
- 👤 Austen Frederick Hugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:25
CPC Classifications
F; F28; F28D; F28D1/00; F28D1/02; F28D1/0246; F28D21/00; F28D2021/0019; F28D2021/0035
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) | 1935-11-22 | 1936-05-23 | 1936-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-11-22 | 1940-05-23 | 1940-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-11-22 | 1944-05-23 | 1944-11-22 | $7700.00 | Window Closed / Lapsed |