US2802526A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1954-02-26
•
Granted: 1957-08-13
•
Expires: 1974-02-26
Abstract
No abstract record available.
Inventors
- 👤 Hillman Swan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:24
CPC Classifications
B; B21; B21K; B21K1/00; B21K1/64; Y; Y10; Y10S; Y10S470/00; Y10S470/904; Y10T; Y10T83/00; Y10T83/465; Y10T83/4766; Y10T83/4769; Y10T83/4772; Y10T83/4783; Y10T83/4786; Y10T83/4795; Y10T83/4812
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US800350A
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US2006100A
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US2218541A
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US2692535A
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US2750716A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-12 | 1961-02-11 | 1961-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-12 | 1965-02-11 | 1965-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-12 | 1969-02-11 | 1969-08-13 | $7700.00 | Window Closed / Lapsed |