US3106019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool for pneumatic chipping hammers
Assignee: Individual
•
Filing: 1962-06-25
•
Granted: 1963-10-08
•
Expires: 1982-06-25
Abstract
No abstract record available.
Inventors
- 👤 Magnussen Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:36
CPC Classifications
B; B25; B25D; B25D3/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
109 words
A CHISEL FOR CUTTING AN ELONGATED GROOVE IN METAL WORK COMPRISING AN ELONGATED STEEL CYLINDRICAL BODY INCLUDING A SHANK, A CUTTING HEAD REDUCED IN DIAMETER AND A HANDLE FOR ATTACHMENT TO A PNEUMATIC HAMMER SAID HEAD HAVING OPPOSED DISHED-OUT SIDE PORTIONS CONSITUTING CLEARANCES TO PREVENT BINDING OR JAMMING, UPWARDLY AND OUTWARDLY TAPERING SURFACES OUTWARDLY OF THE CLEARANCES, THE TOP OF THE HEAD TERMINATING IN A SLIGHTLY DOWNWARDLY SLANTED END, THE BOTTOM OF THE HEAD BEING UPWARDLY CURVED AND INTERSECTING THE FRONT END EDGES OF THE UPWARDLY AND OUTWARDLY TAPERING SURFACES OUTWARDLY OF THE CLEARANCES FORMING EDGES, THE END OF THE HEAD AND SAID OUTWARDLY TAPERING SURFACES DEFINING CUTTING EDGES.
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) | 1966-10-07 | 1967-04-08 | 1967-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-07 | 1971-04-08 | 1971-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-07 | 1975-04-08 | 1975-10-08 | $7700.00 | Window Closed / Lapsed |