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US2520232A
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Assignee: Individual
•
Filing: 1945-11-07
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Granted: 1950-08-29
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Expires: 1965-11-07
Abstract
No abstract record available.
Inventors
- 👤 Bereza Bohdan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:10
CPC Classifications
F; F16; F16B; F16B37/00; F16B37/12; F16B25/00; F16B25/001; F16B25/0015; F16B25/0036; F16B25/0094; F16B25/10; F16B25/106; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/947; Y10S411/949
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190521852A
Cited
US906691A
Cited
US1011392A
Cited
US1199624A
Cited
GB273780A
Cited
US1820644A
Cited
FR739598A
Cited
GB393675A
Cited
US2150876A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-28 | 1954-02-27 | 1954-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-28 | 1958-02-27 | 1958-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-28 | 1962-02-27 | 1962-08-29 | $7700.00 | Window Closed / Lapsed |