US3065764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two temperature hot water tank
Assignee: RUUD Manufacturing CO
•
Filing: 1954-03-25
•
Granted: 1962-11-27
•
Expires: 1974-03-25
Abstract
No abstract record available.
Inventors
- 👤 John M Lyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:34
CPC Classifications
F; F24; F24H; F24H9/00; F24H9/12; F24H9/13; F24H9/133; Y; Y10; Y10T; Y10T137/00; Y10T137/6416; Y10T137/6497; Y10T137/8593; Y10T137/87571; Y10T137/87652
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2229601A
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FR461154A
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US1209063A
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US1462413A
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US1519594A
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US1635745A
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US1810774A
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US1924038A
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US1962214A
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US2117907A
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GB535230A
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US2515974A
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US2591400A
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US2644476A
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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) | 1965-11-26 | 1966-05-28 | 1966-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-26 | 1970-05-28 | 1970-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-26 | 1974-05-28 | 1974-11-27 | $7700.00 | Window Closed / Lapsed |