Patent US2638582A successfully refreshed from Google Patents.
US2638582A
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Assignee: McCord Corp
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Filing: 1950-05-10
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Granted: 1953-05-12
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Expires: 1970-05-10
Abstract
No abstract record available.
Inventors
- 👤 Ralph F Urso
- 👤 Alfred W Gardes
- 👤 Edward L Carleton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:55
CPC Classifications
F; F16; F16N; F16N23/00; F16K; F16K15/00; F16K15/02; F16K15/06; F16K15/063; G; G01; G01F; G01F1/00; G01F1/05; G01F1/20; G01F1/22; G01F1/26; Y; Y10; Y10T; Y10T137/00; Y10T137/8158; Y10T137/8225
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-11 | 1956-11-10 | 1957-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-11 | 1960-11-10 | 1961-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-11 | 1964-11-10 | 1965-05-12 | $7700.00 | Window Closed / Lapsed |