US2744503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas fired table top water heater with built-in draft diverter
Assignee: Combustion Engineering Inc
•
Filing: 1952-02-23
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Granted: 1956-05-08
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Expires: 1972-02-23
Abstract
No abstract record available.
Inventors
- 👤 Paul R Millsaps
- 👤 Ralph T Morton
- 👤 Herman W Reedy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:49
CPC Classifications
F; F24; F24H; F24H1/00; F24H1/18; F24H1/20; F24H1/205; F24H15/00; F24H15/20; F24H15/212; F24H15/223; F24H15/30; F24H15/355; F24H15/36; F24H9/00; F24H9/20; F24H9/2007; F24H9/2035; F24H9/2042
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2604887A
Cited
US2223769A
Cited
US2222663A
Cited
US2359465A
Cited
US2385450A
Cited
US2480657A
Cited
US2499636A
Cited
US2651299A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-08 | 1959-11-07 | 1960-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-08 | 1963-11-07 | 1964-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-08 | 1967-11-07 | 1968-05-08 | $7700.00 | Window Closed / Lapsed |