Patent US2057820A successfully refreshed from Google Patents.
US1673655A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nonskid chain for automobiles
Assignee: Individual
•
Filing: 1927-12-16
•
Granted: 1928-06-12
•
Expires: 1947-12-16
Abstract
No abstract record available.
Inventors
- 👤 Calvin H Weston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:03
CPC Classifications
B; B60; B60C; B60C27/00; B60C27/06; B60C27/08
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1931-06-12 | 1931-12-12 | 1932-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-06-12 | 1935-12-12 | 1936-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-06-12 | 1939-12-12 | 1940-06-12 | $7700.00 | Window Closed / Lapsed |