Patent US2676584A successfully refreshed from Google Patents.
US2676584A
Expired / Lapsed
US
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Hot-water heater and system therefor
Assignee: Individual
•
Filing: 1949-08-03
•
Granted: 1954-04-27
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Expires: 1969-08-03
Abstract
No abstract record available.
Inventors
- 👤 Mcgonigle William George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:56
CPC Classifications
F; F24; F24D; F24D19/00; F24D19/0092
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-26 | 1957-10-26 | 1958-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-26 | 1961-10-26 | 1962-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-26 | 1965-10-26 | 1966-04-27 | $7700.00 | Window Closed / Lapsed |