US3264443A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Explosion-proof switch box assembly including reciprocal external actuator means
Assignee: Killark Electric Manufacturing Co
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Filing: 1963-11-18
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Granted: 1966-08-02
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Expires: 1983-11-18
Abstract
No abstract record available.
Inventors
- 👤 Joseph J Farina
- 👤 Marshall G Zavertnik
- 👤 James A Kelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:53
CPC Classifications
H; H01; H01H; H01H23/00; H01H23/02; H01H23/12; H01H23/14; H01H23/148; H01H9/00; H01H9/02; H01H9/04; H01H9/042; H01H9/20; H01H9/28; H01H9/281
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
114 words
IN A SWITCH ASSEMBLY, A BOX, A SWITCH IN THE BOX HAVING AN OPERATING MEMBER OPERABLE BY BACK AND FORTH MOVEMENT; A ROD SLIDABLY MOUNTED THROUGH A WALL OF THE BOX, MEANS ON THE INNER END OF THE ROD ENGAGEABLE WITH THE SWITCH OPERATING MEMBER TO MOVE IT BACK AND FORTH UPON RECIPROCATION OF THE ROD BACK AND FORTH; A HANDLE ON THE ROD OUTSIDE THE BOX; A BRACKET ON THE BOX ADJACENT THE HANDLE, THE BRACKET HAVING LIMITING MEANS LIMITING INWARD AND OUTWARD MOVEMENTS OF THE HANDLE AND ROD, AND OPENINGS IN THE HANDLE AND BRACKET TO RECEIVE A LOCK TO LOCK THE HANDLE, AND THEREFORE THE SWITCH, IN INNER OR OUTER POSITION.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |