US2695525A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable drill jack
Assignee: H & O Tool Co
•
Filing: 1950-03-03
•
Granted: 1954-11-30
•
Expires: 1970-03-03
Abstract
No abstract record available.
Inventors
- 👤 Harry W Butcnhoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:18
CPC Classifications
B; B25; B25H; B25H1/00; B25H1/0021; B25H1/0057; Y; Y10; Y10T; Y10T408/00; Y10T408/55; Y10T408/561; Y10T408/5619; Y10T408/65; Y10T408/675; Y10T408/6786; Y10T74/00; Y10T74/15; Y10T74/1558; Y10T74/1577; Y10T74/1587; Y10T74/1598
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US173537A
Cited
US1511209A
Cited
US1766364A
Cited
US2031815A
Cited
US2229839A
Cited
US2367347A
Cited
US2466965A
Cited
GB618703A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-29 | 1958-05-31 | 1958-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-29 | 1962-05-31 | 1962-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-29 | 1966-05-31 | 1966-11-30 | $7700.00 | Window Closed / Lapsed |