Patent information:
| Patent: | Utility 1,427,953 |
| Patented: | September 5, 1922 |
| Applied: | June 6, 1918 |
| Title: | Attaching Device |
| Description: | Knob |
| Category: | Knob |
| Assigned to: | Porcelain Appliance Corp. |
Patentee Information:
| HARRISON, Arthur W. | Winthrop, MA |
Class and subclass information:
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 166R | INSULATORS; With insulator-supporting or attaching means; Support penetrating; Through aperture, penetrating element clamped; |
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 157 | INSULATORS; Divided insulator; Aligned through aperture; |
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 175 | INSULATORS; With conductor holding means; Insulator structure; Self-retaining; |
| Class: | 411 | EXPANDED, THREADED, DRIVEN, HEADED, TOOL-DEFORMED, OR LOCKED-THREADED FASTENER |
| Subclass: | 447 | IMPACT DRIVEN FASTENER, E.G., NAIL, SPIKE, TACK, ETC.; Including integral locking means; Comprising deformable portion; |
| Class: | 411 | EXPANDED, THREADED, DRIVEN, HEADED, TOOL-DEFORMED, OR LOCKED-THREADED FASTENER |
| Subclass: | 456 | IMPACT DRIVEN FASTENER, E.G., NAIL, SPIKE, TACK, ETC.; Including integral locking means; Comprising protrusion or recess on shank; Barb or spur-type projection; |
| Class: | 411 | EXPANDED, THREADED, DRIVEN, HEADED, TOOL-DEFORMED, OR LOCKED-THREADED FASTENER |
| Subclass: | 922 | NAIL, SPIKE OR TACK HAVING LOCKING DEVICE; |
| Class: | 411 | EXPANDED, THREADED, DRIVEN, HEADED, TOOL-DEFORMED, OR LOCKED-THREADED FASTENER |
| Subclass: | 999 | WITH RETAINER (E.G., TETHER); |
Known specimens:
| None known |
Drawings:
Page 1 |