US3204053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Miniature plug and jack explosion proof connector
Assignee: TDK Micronas GmbH
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Filing: 1962-12-20
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Granted: 1965-08-31
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Expires: 1982-12-20
Abstract
No abstract record available.
Inventors
- 👤 Bilek Frank Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:07
CPC Classifications
H; H01; H01R; H01R24/00; H01R24/58; H01R2103/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
AN EXPLOSION PROOF TELEPHONE SWITCHBOARD-TYPE CONNECTOR COMPRISING A PLUG AND JACK COMBINATION FOR COMPLETING A CONNECTION BETWEEN TWO TELEPHONE CIRCUITS, SAID PLUG HAVING AT LEAST TIP AND SLEEVE CONTACTS, SAID JACK HAVING AT LEAST ONE SPRING CONTACT FOR MATING WITH ONE OF SAID PLUG CONTACTS, MEANS FOR PRECLUDING ENERGIZATION OF SAID JACK SPRING WHEN SAID PLUG AND JACK FIRST MEET, AND MEANS COMPRISING AN EXPLOSION PROOF MINIATURE SNAP SWITCH OPERATED RESPONSIVE TO MOVEMENT OF SAID JACK SPRING CAUSED BY PLUG MOTION FOR ENERGIZING SAID JACK SPRING FROM THE TALKING BATTERY OF A TELEPHONE SYSTEM AFTER AN ARC IS NO LONGER POSSIBLE.
Claim 2
Dependent Claim
101 words
AN EXPLOSION PROOF TELEPHONE SWITCHBOARD-TYPE CONNECTOR COMPRISING A PLUG AND JACK COMBINATION FOR COMPLETING A CONNECTION BETWEEN TWO TELEPHONE CIRCUITS, SAID PLUG HAVING AT LEAST TIP AND SLEEVE CONTACTS, SAID JACK HAVING AT LEAST ONE SPRING CONTACT FOR MATING WITH ONE OF SAID PLUG CONTACTS, MEANS FOR PRECLUDING ENERGIZATION OF SAID JACK SPRING WHEN SAID PLUG AND JACK FIRST MEET, AND MEANS COMPRISING AN EXPLOSION PROOF MINIATURE SNAP SWITCH OPERATED RESPONSIVE TO MOVEMENT OF SAID JACK SPRING CAUSED BY PLUG MOTION FOR ENERGIZING SAID JACK SPRING FROM THE TALKING BATTERY OF A TELEPHONE SYSTEM AFTER AN ARC IS NO LONGER POSSIBLE.
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) | 1968-08-30 | 1969-03-01 | 1969-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-30 | 1973-03-01 | 1973-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-30 | 1977-03-01 | 1977-08-31 | $7700.00 | Window Closed / Lapsed |