US2413360A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchanger
Assignee: WALTER MAGUIRE Co Inc
•
Filing: 1940-10-02
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Granted: 1946-12-31
•
Expires: 1960-10-02
Abstract
No abstract record available.
Inventors
- 👤 Walter R Maguire
- 👤 Edwin J Lockwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:26
CPC Classifications
F; F28; F28G; F28G13/00; A; A01; A01J; A01J9/00; A01J9/04; F28D; F28D7/00; F28D7/10; F28D7/106; F28F; F28F1/00; F28F1/02; F28F1/08; F28F9/00; F28F9/02; F28F9/0202; F28F9/0204; F28F9/0209; F28F9/0212; F28F2265/00; F28F2265/26; Y; Y10; Y10S; Y10S165/00; Y10S165/051; Y10S165/052; Y10S165/06
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) | 1949-12-30 | 1950-07-01 | 1950-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-12-30 | 1954-07-01 | 1954-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-12-30 | 1958-07-01 | 1958-12-31 | $7700.00 | Window Closed / Lapsed |