Patent US2433769A successfully refreshed from Google Patents.
US2433769A
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US
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Assignee: Individual
•
Filing: 1945-03-03
•
Granted: 1947-12-30
•
Expires: 1965-03-03
Abstract
No abstract record available.
Inventors
- 👤 Roy S Lander
- 👤 Eugene B Ley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:39
CPC Classifications
A; A63; A63F; A63F7/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US600738A
Cited
US1282418A
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US1421575A
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US1523684A
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US1663404A
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US1922904A
Cited
US2001829A
Cited
US2048915A
Cited
US2196549A
Cited
US2229180A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-29 | 1951-06-30 | 1951-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-29 | 1955-06-30 | 1955-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-29 | 1959-06-30 | 1959-12-30 | $7700.00 | Window Closed / Lapsed |