Patent US2617688A successfully refreshed from Google Patents.
US2617688A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Skate roller assembly
Assignee: Individual
•
Filing: 1948-03-22
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Granted: 1952-11-11
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Expires: 1968-03-22
Abstract
No abstract record available.
Inventors
- 👤 Herbert A Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:32
CPC Classifications
F; F16; F16C; F16C13/00; F16C13/006; A; A63; A63C; A63C17/00; A63C17/22; F16C2316/00; F16C2316/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US610923A
Cited
US1566609A
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US856634A
Cited
US1446463A
Cited
US1743757A
Cited
US1751795A
Cited
US1975661A
Cited
US2316498A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-11 | 1956-05-12 | 1956-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-11 | 1960-05-12 | 1960-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-11 | 1964-05-12 | 1964-11-11 | $7700.00 | Window Closed / Lapsed |