US2689769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Skate roller structure
Assignee: CHICAGO ROLLER SKATE Co
•
Filing: 1949-03-05
•
Granted: 1954-09-21
•
Expires: 1969-03-05
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert R Ware
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:51
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/30; F16C33/38; F16C33/41; A; A63; A63C; A63C17/00; A63C17/22; F16C19/00; F16C19/02; F16C19/14; F16C19/18; F16C19/181; F16C19/183; F16C19/184; F16C27/00; F16C27/06; F16C27/066; F16C33/42; F16C2316/00; F16C2316/30
Claims Analysis
Total Claims: 0
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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) | 1957-09-20 | 1958-03-22 | 1958-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-20 | 1962-03-22 | 1962-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-20 | 1966-03-22 | 1966-09-21 | $7700.00 | Window Closed / Lapsed |