US3507129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drive means
Assignee: United States Steel Corp
•
Filing: 1969-02-28
•
Granted: 1970-04-21
•
Expires: 1989-02-28
Abstract
No abstract record available.
Inventors
- 👤 Theodore Tarenskeen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:09
CPC Classifications
F; F16; F16D; F16D1/00; F16D1/02; B; B21; B21B; B21B19/00; B21B19/02; F16H; F16H37/00; B21B35/00; B21B35/14; F16H2700/00; F16H2700/02; Y; Y10; Y10S; Y10S464/00; Y10S464/901; Y10T; Y10T403/00; Y10T403/57; Y10T403/5741; Y10T403/70; Y10T403/7041; Y10T403/7075; Y10T403/7077; Y10T403/7079; Y10T403/7084
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) | 1973-04-20 | 1973-10-20 | 1974-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-20 | 1977-10-20 | 1978-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-20 | 1981-10-20 | 1982-04-21 | $7700.00 | Window Closed / Lapsed |