US2584078A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1947-01-28
•
Granted: 1952-01-29
•
Expires: 1967-01-28
Abstract
No abstract record available.
Inventors
- 👤 Hsi-Yu Hsu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:42
CPC Classifications
B; B60; B60T; B60T7/00; B60T7/12; B60T7/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1412212A
Cited
GB215314A
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US1721605A
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US1878194A
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US1811484A
Cited
GB296977A
Cited
US1804032A
Cited
US2192021A
Cited
US2232726A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-28 | 1955-07-30 | 1956-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-28 | 1959-07-30 | 1960-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-28 | 1963-07-30 | 1964-01-29 | $7700.00 | Window Closed / Lapsed |