Patent US2495883A successfully refreshed from Google Patents.
US2495883A
Expired / Lapsed
US
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Heater
Assignee: EA Laboratories Inc
•
Filing: 1949-01-12
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Granted: 1950-01-31
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Expires: 1969-01-12
Abstract
No abstract record available.
Inventors
- 👤 John M Aufiero
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:25
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/00457; B60H1/00464
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1746985A
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US1903037A
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US2221891A
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US2377094A
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US2237333A
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US2186562A
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US2237477A
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US2237452A
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US2249946A
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US2304643A
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US2355151A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-30 | 1953-08-01 | 1954-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-30 | 1957-08-01 | 1958-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-30 | 1961-08-01 | 1962-01-31 | $7700.00 | Window Closed / Lapsed |