US3422249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety device for an electric hot water baseboard
Assignee: Crane Co
•
Filing: 1965-04-13
•
Granted: 1969-01-14
•
Expires: 1985-04-13
Abstract
No abstract record available.
Inventors
- 👤 John S Grossinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:00
CPC Classifications
F; F24; F24H; F24H3/00; F24H3/002; F24H3/004; F24H15/00; F24H15/10; F24H15/128; F24H15/132; F24H15/20; F24H15/212; F24H15/30; F24H15/355; F24H15/37; F24H9/00; F24H9/20; F24H9/2064; F24H9/2071
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2063152A
Cited
US2080798A
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US2088728A
Cited
US2538080A
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US2578819A
Cited
US2745941A
Cited
US3254796A
Cited
US3261964A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-14 | 1972-07-15 | 1973-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-14 | 1976-07-15 | 1977-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-14 | 1980-07-15 | 1981-01-14 | $7700.00 | Window Closed / Lapsed |