US2430837A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for heating water and other liquids
Assignee: CONSULTING ENGINEERING Co
•
Filing: 1943-12-23
•
Granted: 1947-11-11
•
Expires: 1963-12-23
Abstract
No abstract record available.
Inventors
- 👤 Joseph F Tutein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:12
CPC Classifications
F; F24; F24D; F24D1/00; F24D1/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB189423298A
Cited
US1264061A
Cited
US1987032A
Cited
US2029203A
Cited
US1962214A
Cited
US2013480A
Cited
US2224240A
Cited
US2372533A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-11-10 | 1951-05-12 | 1951-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-11-10 | 1955-05-12 | 1955-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-11-10 | 1959-05-12 | 1959-11-11 | $7700.00 | Window Closed / Lapsed |