Patent US1639474A successfully refreshed from Google Patents.
Patent US4295095A successfully refreshed from Google Patents.
Patent US1278320A successfully refreshed from Google Patents.
US1278320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shoe-tread.
Assignee: Individual
•
Filing: 1916-12-22
•
Granted: 1918-09-10
•
Expires: 1936-12-22
Abstract
No abstract record available.
Inventors
- 👤 Gilbert S Ellithorpe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:09
CPC Classifications
A; A43; A43B; A43B13/00; A43B13/14; A43B13/22; A43B13/223
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) | 1921-09-09 | 1922-03-11 | 1922-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1925-09-09 | 1926-03-11 | 1926-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1929-09-09 | 1930-03-11 | 1930-09-10 | $7700.00 | Window Closed / Lapsed |