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US2446206A
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US
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Assignee: Individual
•
Filing: 1945-05-22
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Granted: 1948-08-03
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Expires: 1965-05-22
Abstract
No abstract record available.
Inventors
- 👤 Emil J Beckman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:46
CPC Classifications
E; E05; E05B; E05B15/00; E05B15/02; E05B15/0205; E05B15/024; E05B15/0255; Y; Y10; Y10T; Y10T292/00; Y10T292/68; Y10T292/688
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE219029C
Cited
DE313447C
Cited
US881860A
Cited
US1186315A
Cited
GB165139A
Cited
US1796207A
Cited
GB419818A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-08-03 | 1952-02-02 | 1952-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-08-03 | 1956-02-02 | 1956-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-08-03 | 1960-02-02 | 1960-08-03 | $7700.00 | Window Closed / Lapsed |