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US2542423A
Expired / Lapsed
US
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Control
Assignee: Individual
•
Filing: 1947-03-08
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Granted: 1951-02-20
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Expires: 1967-03-08
Abstract
No abstract record available.
Inventors
- 👤 Harry C Metzger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:23
CPC Classifications
F; F16; F16C; F16C1/00; F16C1/10; F16C1/12; F16C1/16; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/956; Y10S411/96; Y10S74/00; Y10S74/10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18088; Y10T74/18128; Y10T74/18136; Y10T74/20; Y10T74/20396; Y10T74/20402; Y10T74/2042; Y10T74/20438; Y10T74/20576; Y10T74/20636; Y10T74/2066
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) | 1954-02-19 | 1954-08-21 | 1955-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-19 | 1958-08-21 | 1959-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-19 | 1962-08-21 | 1963-02-20 | $7700.00 | Window Closed / Lapsed |