US2010180A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal storage heating system
Assignee: FERRANTI Inc
•
Filing: 1932-03-25
•
Granted: 1935-08-06
•
Expires: 1952-03-25
Abstract
No abstract record available.
Inventors
- 👤 Ferranti Vincent Ziani De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:16
CPC Classifications
F; F24; F24H; F24H7/00; F24C; F24C15/00; F24C15/34; Y; Y10; Y10S; Y10S165/00; Y10S165/904
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) | 1938-08-05 | 1939-02-04 | 1939-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-08-05 | 1943-02-04 | 1943-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-08-05 | 1947-02-04 | 1947-08-06 | $7700.00 | Window Closed / Lapsed |