US1655086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchanger
Assignee: Individual
•
Filing: 1926-03-26
•
Granted: 1928-01-03
•
Expires: 1946-03-26
Abstract
No abstract record available.
Inventors
- 👤 Robert L Blanding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:08
CPC Classifications
F; F28; F28D; F28D7/00; F28D7/02; F28D7/024; F28B; F28B1/00; F28B1/02; F28D7/16; F28D7/1615; F28D7/1623; F28F; F28F2265/00; F28F2265/26; Y; Y10; Y10S; Y10S165/00; Y10S165/355; Y10S165/40; Y10S165/401; Y10S165/416; Y10S165/417; Y10S165/419
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) | 1931-01-02 | 1931-07-04 | 1932-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-01-02 | 1935-07-04 | 1936-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-01-02 | 1939-07-04 | 1940-01-03 | $7700.00 | Window Closed / Lapsed |