US1807164A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchange unit
Assignee: Modine Manufacturing Co
•
Filing: 1927-03-25
•
Granted: 1931-05-26
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Expires: 1947-03-25
Abstract
No abstract record available.
Inventors
- 👤 Arthur B Modine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:54
CPC Classifications
F; F28; F28D; F28D1/00; F28D1/02; F28D1/0233; F28D1/024; Y; Y10; Y10S; Y10S165/00; Y10S165/092; Y10S165/093; Y10S165/096; Y10S165/097; Y10S165/099
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) | 1934-05-25 | 1934-11-24 | 1935-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-05-25 | 1938-11-24 | 1939-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-05-25 | 1942-11-24 | 1943-05-26 | $7700.00 | Window Closed / Lapsed |