US1993095A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiator
Assignee: Individual
•
Filing: 1932-04-19
•
Granted: 1935-03-05
•
Expires: 1952-04-19
Abstract
No abstract record available.
Inventors
- 👤 Albert S Heinrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:10
CPC Classifications
F; F28; F28D; F28D1/00; F28D1/02; F28D1/04; F28D1/053; F28D1/0535; F28D1/05366; F28D1/05391; Y; Y10; Y10S; Y10S165/00; Y10S165/454; Y10S165/468
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1938-03-04 | 1938-09-03 | 1939-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-03-04 | 1942-09-03 | 1943-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-03-04 | 1946-09-03 | 1947-03-05 | $7700.00 | Window Closed / Lapsed |