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US2639113A
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Assignee: Individual
•
Filing: 1951-05-17
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Granted: 1953-05-19
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Expires: 1971-05-17
Abstract
No abstract record available.
Inventors
- 👤 Stanley E Kriz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:08
CPC Classifications
B; B65; B65F; B65F1/00; B65F1/14; B65F1/16; B65F1/1623; B65F1/163; B65F1/141; B65F1/1421
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US649412A
Cited
US1251984A
Cited
US1831493A
Cited
US1820555A
Cited
US2102914A
Cited
US2546449A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-18 | 1956-11-17 | 1957-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-18 | 1960-11-17 | 1961-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-18 | 1964-11-17 | 1965-05-19 | $7700.00 | Window Closed / Lapsed |