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US2526488A
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US
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Assignee: Individual
•
Filing: 1947-11-01
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Granted: 1950-10-17
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Expires: 1967-11-01
Abstract
No abstract record available.
Inventors
- 👤 Laichee Jhong
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:45
CPC Classifications
A; A24; A24F; A24F19/00; A24F19/0042; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44641; Y10T24/44769; Y10T24/44778
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US177456A
Cited
GB190727090A
Cited
US992995A
Cited
GB262586A
Cited
US1640584A
Cited
US1747024A
Cited
US1964388A
Cited
US2136802A
Cited
US2300068A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-16 | 1954-04-17 | 1954-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-16 | 1958-04-17 | 1958-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-16 | 1962-04-17 | 1962-10-17 | $7700.00 | Window Closed / Lapsed |