US2586388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1948-06-10
•
Granted: 1952-02-19
•
Expires: 1968-06-10
Abstract
No abstract record available.
Inventors
- 👤 Schafroth Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:10
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/38; E04B1/388; F; F16; F16B; F16B2/00; F16B2/20; F16B2/22; F16B2/24; Y; Y10; Y10S; Y10S411/00; Y10S411/92; Y10T; Y10T24/00; Y10T24/49; Y10T24/492; Y10T24/497
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
NL15498C
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US431175A
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US461177A
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GB190816246A
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US1196374A
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US1270193A
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US1939631A
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US2073037A
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US2122814A
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US2302559A
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US2324654A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-18 | 1955-08-20 | 1956-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-18 | 1959-08-20 | 1960-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-18 | 1963-08-20 | 1964-02-19 | $7700.00 | Window Closed / Lapsed |