US1454315A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiator
Assignee: O D COLLIS
•
Filing: 1920-03-08
•
Granted: 1923-05-08
•
Expires: 1940-03-08
Abstract
No abstract record available.
Inventors
- 👤 Everett B Cushman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:40
CPC Classifications
F; F28; F28D; F28D11/00; F28D11/02; F28D11/025; Y; Y10; Y10S; Y10S165/00; Y10S165/135; Y10S165/139; Y10S165/147
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) | 1926-05-07 | 1926-11-06 | 1927-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-05-07 | 1930-11-06 | 1931-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-05-07 | 1934-11-06 | 1935-05-08 | $7700.00 | Window Closed / Lapsed |