US2415243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigeration apparatus and method of making same
Assignee: Bohn Aluminum and Brass Corp
•
Filing: 1943-10-20
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Granted: 1947-02-04
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Expires: 1963-10-20
Abstract
No abstract record available.
Inventors
- 👤 Charles E Hickman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:25
CPC Classifications
F; F25; F25B; F25B39/00; F25B39/02; F25B41/00; F25B41/30; F25B41/37; F25D; F25D11/00; F25D11/02; F25B2400/00; F25B2400/05; F25B2400/052; F25B2400/054; Y; Y10; Y10S; Y10S29/00; Y10S29/047; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49359; Y10T428/00; Y10T428/12; Y10T428/12333; Y10T428/12493; Y10T428/12736; Y10T428/1275; Y10T428/12757
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-02-03 | 1950-08-05 | 1951-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-02-03 | 1954-08-05 | 1955-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-02-03 | 1958-08-05 | 1959-02-04 | $7700.00 | Window Closed / Lapsed |