US2575606A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: IND PATENT CORP
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Filing: 1947-11-26
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Granted: 1951-11-20
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Expires: 1967-11-26
Abstract
No abstract record available.
Inventors
- 👤 Nathaniel B Wales
- 👤 Jr Nathaniel B Wales
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:36
CPC Classifications
G; G07; G07F; G07F17/00; G07F17/40; Y; Y10; Y10S; Y10S101/00; Y10S101/44; Y10T; Y10T83/00; Y10T83/444; Y10T83/4496
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-19 | 1955-05-21 | 1955-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-19 | 1959-05-21 | 1959-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-19 | 1963-05-21 | 1963-11-20 | $7700.00 | Window Closed / Lapsed |