US3076356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutting tool
Assignee: Individual
•
Filing: 1960-09-19
•
Granted: 1963-02-05
•
Expires: 1980-09-19
Abstract
No abstract record available.
Inventors
- 👤 Simich Emil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:36
CPC Classifications
B; B23; B23B; B23B51/00; B23B51/0081; B23B2251/00; B23B2251/40; B23B2251/406; Y; Y10; Y10T; Y10T408/00; Y10T408/89; Y10T408/905
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A CUTTING TOOL FOR CUTTING ROUND HOLES IN SHEET MATERIAL COMPRISING, A BODY HAVING A TAPERED SIDE WALL IMPARTING A CONE-SHAPE THERETO, SAID TAPERED SIDE WALL BEING FORMED ON A HELIX WITH A SMALL LEAD PER REVOLUTION, SAID BODY BEING PROVIDED WITH A FIRST LONGITUDINAL FLUTE HAVING A CUTTING EDGE, AND A SECOND LONGITUDINAL FLUTE EXTENDING FROM SAID CUTTING EDGE TO SAID TAPERED SIDE WALL.
Claim 2
Dependent Claim
65 words
A CUTTING TOOL FOR CUTTING ROUND HOLES IN SHEET MATERIAL COMPRISING, A BODY HAVING A TAPERED SIDE WALL IMPARTING A CONE-SHAPE THERETO, SAID TAPERED SIDE WALL BEING FORMED ON A HELIX WITH A SMALL LEAD PER REVOLUTION, SAID BODY BEING PROVIDED WITH A FIRST LONGITUDINAL FLUTE HAVING A CUTTING EDGE, AND A SECOND LONGITUDINAL FLUTE EXTENDING FROM SAID CUTTING EDGE TO SAID TAPERED SIDE WALL.
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) | 1966-02-04 | 1966-08-06 | 1967-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-04 | 1970-08-06 | 1971-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-04 | 1974-08-06 | 1975-02-05 | $7700.00 | Window Closed / Lapsed |