US2552337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heater
Assignee: Eaton Corp
•
Filing: 1947-10-02
•
Granted: 1951-05-08
•
Expires: 1967-10-02
Abstract
No abstract record available.
Inventors
- 👤 Victor E Matulaitis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:23
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/00457; B60H1/00471; Y; Y10; Y10S; Y10S165/00; Y10S165/228; Y10S165/302; Y10S165/311; Y10S165/312
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1448325A
Cited
US1502858A
Cited
US1881776A
Cited
US1853333A
Cited
US1909144A
Cited
US1892307A
Cited
US1966632A
Cited
US2213016A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-07 | 1954-11-06 | 1955-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-07 | 1958-11-06 | 1959-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-07 | 1962-11-06 | 1963-05-08 | $7700.00 | Window Closed / Lapsed |