US3159762A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Core construction
Assignee: Franklin Electric Co Inc
•
Filing: 1960-05-05
•
Granted: 1964-12-01
•
Expires: 1980-05-05
Abstract
No abstract record available.
Inventors
- 👤 William E Haifley
- 👤 Edward J Schaefer
- 👤 Lee J Lakes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:29
CPC Classifications
H; H02; H02K; H02K1/00; H02K1/06; H02K1/12; H02K1/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
IN COMBINATION, A STACK OF LAMINATIONS SUPERIMPOSED IN FACE-TO-FACE RELATION, SAID STACK HAVING A GROOVE ACROSS THE EDGES OF THE RESPECTIVE LAMINATIONS, SAID GROOVE BEING GENERALLY RECTANGULAR IN CROSS SECTION, AND AN ELONGATED STRIP OF BANDING MATERIAL POSITIONED IN SAID GROOVE AND HAVING ALTERNATING TRANSVERSELY EXTENDING DEPRESSED AREAS AND RIBS ON THE TOP SURFACE THEREOF, THE BOTTOM SURFACE OF SAID STRIP IN SAID AREAS CONFORMING TO AND IN TIGHT FRICTIONAL ENGAGEMENT WITH SAID BOTTOM WALL; AND THE OPPOSITE SIDE EDGES OF SAID STRIP IN SAID AREAS BEING COMPRESSED AGAINST SAID SIDE WALLS.
Claim 2
Dependent Claim
92 words
IN COMBINATION, A STACK OF LAMINATIONS SUPERIMPOSED IN FACE-TO-FACE RELATION, SAID STACK HAVING A GROOVE ACROSS THE EDGES OF THE RESPECTIVE LAMINATIONS, SAID GROOVE BEING GENERALLY RECTANGULAR IN CROSS SECTION, AND AN ELONGATED STRIP OF BANDING MATERIAL POSITIONED IN SAID GROOVE AND HAVING ALTERNATING TRANSVERSELY EXTENDING DEPRESSED AREAS AND RIBS ON THE TOP SURFACE THEREOF, THE BOTTOM SURFACE OF SAID STRIP IN SAID AREAS CONFORMING TO AND IN TIGHT FRICTIONAL ENGAGEMENT WITH SAID BOTTOM WALL; AND THE OPPOSITE SIDE EDGES OF SAID STRIP IN SAID AREAS BEING COMPRESSED AGAINST SAID SIDE WALLS.
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) | 1967-12-01 | 1968-06-01 | 1968-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-01 | 1972-06-01 | 1972-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-01 | 1976-06-01 | 1976-12-01 | $7700.00 | Window Closed / Lapsed |