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US2272552A
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Assignee: SPX Technologies Inc
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Filing: 1939-01-31
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Granted: 1942-02-10
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Expires: 1959-01-31
Abstract
No abstract record available.
Inventors
- 👤 Oscar S Field
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:19
CPC Classifications
H; H01; H01H; H01H50/00; H01H50/16; H01H50/18; H01H50/32; F; F16; F16B; F16B39/00; F16B39/02; F16B39/22; F16B39/28; F16B39/284; F16B39/286; H01R; H01R4/00; H01R4/28; H01R4/30; H01R4/34; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/929; Y10S411/938; Y10S411/954; Y10S439/00; Y10S439/957
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1945-02-09 | 1945-08-11 | 1946-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-02-09 | 1949-08-11 | 1950-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-02-09 | 1953-08-11 | 1954-02-10 | $7700.00 | Window Closed / Lapsed |