US1999246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiator
Assignee: De Dietrich et Cie SA
•
Filing: 1933-11-20
•
Granted: 1935-04-30
•
Expires: 1953-11-20
Abstract
No abstract record available.
Inventors
- 👤 Maret Karel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:53
CPC Classifications
F; F28; F28F; F28F9/00; F28F9/26; F28F9/262; F28F9/268; F28F2240/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49373; Y10T29/49826; Y10T29/49908; Y10T29/49909; Y10T29/49911; Y10T29/49938; Y10T29/4994
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) | 1938-04-29 | 1938-10-29 | 1939-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-04-29 | 1942-10-29 | 1943-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-04-29 | 1946-10-29 | 1947-04-30 | $7700.00 | Window Closed / Lapsed |