US2515618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid bath furnace
Assignee: Sunbeam Corp
•
Filing: 1944-04-13
•
Granted: 1950-07-18
•
Expires: 1964-04-13
Abstract
No abstract record available.
Inventors
- 👤 Wallerius John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:55
CPC Classifications
C; C21; C21D; C21D1/00; C21D1/34; C21D1/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1702731A
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US793472A
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US1080113A
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US1069243A
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GB189633A
Cited
US2047471A
Cited
US2204051A
Cited
US2375840A
Cited
US2424765A
Cited
DE855117C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-17 | 1954-01-16 | 1954-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-17 | 1958-01-16 | 1958-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-17 | 1962-01-16 | 1962-07-18 | $7700.00 | Window Closed / Lapsed |