Patent US1397282A successfully refreshed from Google Patents.
US1397282A
Expired / Lapsed
US
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Fluid-heater
Assignee: Individual
•
Filing: 1920-09-16
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Granted: 1921-11-15
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Expires: 1940-09-16
Abstract
No abstract record available.
Inventors
- 👤 Jr John H Hanley
- 👤 John L Krieg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:57
CPC Classifications
F; F24; F24H; F24H1/00; F24H1/0054; Y; Y10; Y10S; Y10S165/00; Y10S165/355; Y10S165/40; Y10S165/401; Y10S165/405; Y10S165/407; Y10T; Y10T24/00; Y10T24/47; Y10T24/4709
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) | 1924-11-14 | 1925-05-16 | 1925-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-11-14 | 1929-05-16 | 1929-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-11-14 | 1933-05-16 | 1933-11-15 | $7700.00 | Window Closed / Lapsed |