US2522104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-retracting wheel chock for automotive vehicles
Assignee: Individual
•
Filing: 1948-04-20
•
Granted: 1950-09-12
•
Expires: 1968-04-20
Abstract
No abstract record available.
Inventors
- 👤 Robert H Edwards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:11
CPC Classifications
B; B60; B60T; B60T3/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1310209A
Cited
US1267999A
Cited
US1506644A
Cited
US1653420A
Cited
US1990101A
Cited
US2252878A
Cited
US2386595A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-11 | 1954-03-13 | 1954-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-11 | 1958-03-13 | 1958-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-11 | 1962-03-13 | 1962-09-12 | $7700.00 | Window Closed / Lapsed |