US3502131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for cutting tread patterns in built-up tires
Assignee: National Standard Co
•
Filing: 1967-03-14
•
Granted: 1970-03-24
•
Expires: 1987-03-14
Abstract
No abstract record available.
Inventors
- 👤 Vaughn Rawls
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:22
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/52; B29D30/68
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-23 | 1973-09-22 | 1974-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-23 | 1977-09-22 | 1978-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-23 | 1981-09-22 | 1982-03-24 | $7700.00 | Window Closed / Lapsed |