US3084734A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for manufacturing transformer cores
Assignee: HK Porter Co Inc
•
Filing: 1960-02-23
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Granted: 1963-04-09
•
Expires: 1980-02-23
Abstract
No abstract record available.
Inventors
- 👤 Jr Joseph W Richardson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 00:30
CPC Classifications
H; H01; H01F; H01F41/00; H01F41/02; H01F41/0206; H01F41/0213; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49071; Y10T29/53; Y10T29/5313; Y10T29/5317; Y10T29/53526; Y10T29/5353
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
IN AN APPARATUS FOR PRODICING A LAMINATED TRANSFORMER CORE FORMED OF A PLURALITY OF STRIPS OF MAGNETIZABLE MATERIAL SUCCESSIVELY WOUND ABOUT ONE ANOTHER, IN AND MEANS FOR SIMULTANEOUSLY INTERRUPTING THE ROTATION OF SAID JIG AND THE WRAPPING OF SAID TAPE AT DESIRED IN-
Claim 2
Dependent Claim
43 words
IN AN APPARATUS FOR PRODICING A LAMINATED TRANSFORMER CORE FORMED OF A PLURALITY OF STRIPS OF MAGNETIZABLE MATERIAL SUCCESSIVELY WOUND ABOUT ONE ANOTHER, IN AND MEANS FOR SIMULTANEOUSLY INTERRUPTING THE ROTATION OF SAID JIG AND THE WRAPPING OF SAID TAPE AT DESIRED IN-
References Cited (Backward Citations)
US1977503A
Cited
US2141151A
Cited
US2264800A
Cited
GB611953A
Cited
US2542806A
Cited
US2588173A
Cited
US2767382A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-08 | 1966-10-08 | 1967-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-08 | 1970-10-08 | 1971-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-08 | 1974-10-08 | 1975-04-09 | $7700.00 | Window Closed / Lapsed |