US3258571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slide-on lifter for switch blades
Assignee: Guardian Electric Manufacturing Co
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Filing: 1964-12-31
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Granted: 1966-06-28
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Expires: 1984-12-31
Abstract
No abstract record available.
Inventors
- 👤 Jr John Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:43
CPC Classifications
H; H01; H01H; H01H1/00; H01H1/12; H01H1/14; H01H1/24; H01H1/26; H01H50/00; H01H50/54
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
94 words
A SWITCH BLADE FORMED OF A STRIP OF ELONGATED, THIN SHEET METAL AND A LIFTER FOR SAID SWITCH BLADE, AND LIFTER BEING FORMED OF ELECTRICALLY INSULATING MATERIAL AND COMPRISING A BODY FORMED WITH A PAIR OF OPPOSITELY EXTENDING ARMS AND HAVING A PASSAGEWAY FOR SLIDABLY ACCOMMODATING THE SWITCH BLADE THEREIN, SAID PASSAGEWAY BEING DIMENSIONED TO PROVIDE AN INTERFERENCE FIT WITH THE THICKNESS AND THE WIDTH OF SAID BLADE FOR SECURING THE LIFTER ON SAID BLADE, SAID LIFTER HAVING AN OPERATING PROJECTION CONNECTED TO SAID BODY AND ADAPTED FOR ENGAGEMENT BY A MOVABLE CONTROL MEMBER.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-27 | 1969-12-27 | 1970-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-27 | 1973-12-27 | 1974-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $7700.00 | Window Closed / Lapsed |