US2768545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic tire chain applier and holder
Assignee: Individual
•
Filing: 1952-11-29
•
Granted: 1956-10-30
•
Expires: 1972-11-29
Abstract
No abstract record available.
Inventors
- 👤 William R Bertelsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:56
CPC Classifications
B; B60; B60C; B60C27/00; B60C27/06; B60C27/14; B60C27/145
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1346469A
Cited
US1540644A
Cited
US1630111A
Cited
US2068207A
Cited
US2613563A
Cited
US2619857A
Cited
US2608117A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-30 | 1960-04-30 | 1960-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-30 | 1964-04-30 | 1964-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-30 | 1968-04-30 | 1968-10-30 | $7700.00 | Window Closed / Lapsed |