US3211874A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Switch construction having improved contact and bracket assembly
Assignee: Sigma Instruments Inc
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Filing: 1964-05-12
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Granted: 1965-10-12
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Expires: 1984-05-12
Abstract
No abstract record available.
Inventors
- 👤 Bertil S Bengtsson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:23
CPC Classifications
H; H01; H01H; H01H50/00; H01H50/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
IN AN ELECTRO-MAGNETIC SWITCH CONSTRUCTION, A CONTACT SUPPORTING BRACKET AND A U-SHAPED CONTACT SPRING SUPPORTED THEREON, SAID BRACKET AND SPRING HAVING FLAT PORTIONS ARRANGED IN JUXTAPOSITION AND BEING PROVIDED WITH INTEGRAL INTERLOCKING TONGUE FORMATIONS ON SAID FLAT PORTIONS FOR SOLELY SUPPORTING AND REMOVABLY HOLDING SAID SPRING IN FIXED POSITION ON THE BRACKET.
Claim 2
Dependent Claim
52 words
IN AN ELECTRO-MAGNETIC SWITCH CONSTRUCTION, A CONTACT SUPPORTING BRACKET AND A U-SHAPED CONTACT SPRING SUPPORTED THEREON, SAID BRACKET AND SPRING HAVING FLAT PORTIONS ARRANGED IN JUXTAPOSITION AND BEING PROVIDED WITH INTEGRAL INTERLOCKING TONGUE FORMATIONS ON SAID FLAT PORTIONS FOR SOLELY SUPPORTING AND REMOVABLY HOLDING SAID SPRING IN FIXED POSITION ON THE BRACKET.
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) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |