US2973010A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot water supply systems and components
Assignee: RUUD Manufacturing CO
•
Filing: 1957-04-04
•
Granted: 1961-02-28
•
Expires: 1977-04-04
Abstract
No abstract record available.
Inventors
- 👤 John M Lyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:10
CPC Classifications
F; F24; F24D; F24D17/00; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/85954; Y10T137/85962; Y10T137/877; Y10T137/87788
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US146073A
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US1519594A
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US1556406A
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US1856504A
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US1824716A
Cited
US1969460A
Cited
US2255460A
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US2485232A
Cited
US2600521A
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US2663500A
Cited
US2778799A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-02-28 | 1964-08-29 | 1965-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-28 | 1968-08-29 | 1969-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-28 | 1972-08-29 | 1973-02-28 | $7700.00 | Window Closed / Lapsed |