US2645255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chain-mortising square hole cutting attachment for drill presses
Assignee: Individual
•
Filing: 1948-08-20
•
Granted: 1953-07-14
•
Expires: 1968-08-20
Abstract
No abstract record available.
Inventors
- 👤 Francescatti Anton
- 👤 Micek Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:52
CPC Classifications
B; B27; B27F; B27F5/00; B27F5/02; B27F5/06; B27B; B27B17/00; B27B17/08; B27B17/086; Y; Y10; Y10T; Y10T408/00; Y10T408/31; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/1966; Y10T74/19665; Y10T74/19688; Y10T83/00; Y10T83/707; Y10T83/7101; Y10T83/7158; Y10T83/7189; Y10T83/7264
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US155111A
Cited
US449703A
Cited
US477528A
Cited
US1170120A
Cited
US1690697A
Cited
US2197210A
Cited
US2351112A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-13 | 1957-01-12 | 1957-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-13 | 1961-01-12 | 1961-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-13 | 1965-01-12 | 1965-07-14 | $7700.00 | Window Closed / Lapsed |