Patent US1950500A successfully refreshed from Google Patents.
US1950500A
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Radiator fin
Assignee: LOPRICH
•
Filing: 1932-04-19
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Granted: 1934-03-13
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Expires: 1952-04-19
Abstract
No abstract record available.
Inventors
- 👤 Loprich John
- 👤 Gillean Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:43
CPC Classifications
F; F28; F28F; F28F1/00; F28F1/10; F28F1/12; F28F1/126; F28F1/14; F28F1/16; F28F1/18; Y; Y10; Y10S; Y10S165/00; Y10S165/355; Y10S165/356; Y10S165/373; Y10S165/374; Y10S165/379; Y10S165/38
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) | 1937-03-12 | 1937-09-11 | 1938-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-03-12 | 1941-09-11 | 1942-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-03-12 | 1945-09-11 | 1946-03-13 | $7700.00 | Window Closed / Lapsed |