Patent US4766173A successfully refreshed from Google Patents.
Patent US3171190A successfully refreshed from Google Patents.
US3171190A
Expired / Lapsed
US
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Manufacture of electromagnetic relay
Assignee: General Electric Co
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Filing: 1961-05-03
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Granted: 1965-03-02
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Expires: 1981-05-03
Abstract
No abstract record available.
Inventors
- 👤 John S Zimmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:10
CPC Classifications
H; H01; H01H; H01H51/00; H01H51/28; H01H51/287; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49105
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
83 words
A METHOD OF MANUFACTURING A PORTION OF AN ELECTROMAGNETIC RELAY FROM A BLANK TO PROVIDE A PAIR OF CORE ELEMENTS SEPARATED BY A GAP, SAID RELAY HAVING A SPRINGLIKE ARMATURE, COMPRISING FORMING A SUBSTANTIALLY FLAT SURFACE ON ONE SIDE OF SAID BLANK, FASTENING SAID SPRING-LIKE ARMATURE AT ONE END THEREOF TO SAID FLAT SURFACE, SUPPORTING THE ENDS OF SAID BLANK IN A FIXED RELATIONSHIP, AND REMOVING A PORTION OF SAID BLANK IN AN AREA INTERMEDIATE THE ENDS THEREOF TO FORM SAID CORE ELEMENTS.
References Cited (Backward Citations)
US2481003A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-01 | 1968-08-31 | 1969-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-01 | 1972-08-31 | 1973-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-01 | 1976-08-31 | 1977-03-02 | $7700.00 | Window Closed / Lapsed |