US2310086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface type heat exchanger
Assignee: General Electric Co
•
Filing: 1941-02-21
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Granted: 1943-02-02
•
Expires: 1961-02-21
Abstract
No abstract record available.
Inventors
- 👤 Howard Alan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:34
CPC Classifications
B; B60; B60K; B60K11/00; B60K11/08; B60K11/085; F; F28; F28B; F28B1/00; F28B1/06; F28F; F28F27/00; Y; Y02; Y02T; Y02T10/00; Y02T10/80; Y02T10/88; Y10; Y10S; Y10S165/00; Y10S165/135; Y10S165/138
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) | 1946-02-01 | 1946-08-03 | 1947-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-02-01 | 1950-08-03 | 1951-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-02-01 | 1954-08-03 | 1955-02-02 | $7700.00 | Window Closed / Lapsed |