US2526466A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Invalid support
Assignee: Individual
•
Filing: 1947-12-31
•
Granted: 1950-10-17
•
Expires: 1967-12-31
Abstract
No abstract record available.
Inventors
- 👤 Jacob A Friesen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:37
CPC Classifications
A; A61; A61G; A61G7/00; A61G7/10; A61G7/1013; A61G7/1017; A61G7/002; A61G7/005; A61G7/104; A61G7/1046; A61G7/1073; A61G7/1082; A61G7/1098; A61G2200/00; A61G2200/30; A61G2200/32; A61G2200/36; Y; Y10; Y10S; Y10S297/00; Y10S297/04
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) | 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 |