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US2454185A
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Assignee: McDonnell and Miller Inc
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Filing: 1945-07-20
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Granted: 1948-11-16
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Expires: 1965-07-20
Abstract
No abstract record available.
Inventors
- 👤 Leo J Kmiecik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:59
CPC Classifications
H; H01; H01H; H01H13/00; H01H13/02; H01H13/26; H01H13/36; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18856; Y10T74/18864
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1231527A
Cited
US1538938A
Cited
US1983026A
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US1976843A
Cited
US2157156A
Cited
US2273671A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-16 | 1952-05-17 | 1952-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-16 | 1956-05-17 | 1956-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-16 | 1960-05-17 | 1960-11-16 | $7700.00 | Window Closed / Lapsed |