Patent US3136878A successfully refreshed from Google Patents.
US3136878A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soldering iron
Assignee: TDK Micronas GmbH
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Filing: 1960-06-23
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Granted: 1964-06-09
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Expires: 1980-06-23
Abstract
No abstract record available.
Inventors
- 👤 Karel J Staller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:37
CPC Classifications
B; B23; B23K; B23K3/00; B23K3/02; B23K3/03; B23K3/0338; B23K3/0353
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A SOLDERING IRON COMPRISING A HANDLE OF ELECTRICALLY INSULATING MATERIAL HAVING RELATIVELY LOW THERMAL CONDUCTIVITY, A CYLINDRICALLY SHAPED BODY OF BERYLLIUM OXIDE FORMING A SOLDERING IRON TIP HAVING A TAPERED EXTREMITY FORMING A WORK CONTACTING SURFACE, MEANS FOR SECURING SAID BODY TO SAID HANDLE WITH SAID TAPERED PORTION EXPOSED, AN ELECTRICALLY CONDUCTIVE RESISTANCE COIL DISPOSED IN CONTACTING RELATIONSHIP WITH AT LEAST A PORTION OF SAID BODY AND ELECTRICAL COUPLING MEANS CARRIED BY SAID HANDLE AND CONNECTED WITH SAID COIL TO COUPLE ELECTRICAL ENERGY TO SAID RESISTANCE COIL.
Claim 2
Dependent Claim
87 words
A SOLDERING IRON COMPRISING A HANDLE OF ELECTRICALLY INSULATING MATERIAL HAVING RELATIVELY LOW THERMAL CONDUCTIVITY, A CYLINDRICALLY SHAPED BODY OF BERYLLIUM OXIDE FORMING A SOLDERING IRON TIP HAVING A TAPERED EXTREMITY FORMING A WORK CONTACTING SURFACE, MEANS FOR SECURING SAID BODY TO SAID HANDLE WITH SAID TAPERED PORTION EXPOSED, AN ELECTRICALLY CONDUCTIVE RESISTANCE COIL DISPOSED IN CONTACTING RELATIONSHIP WITH AT LEAST A PORTION OF SAID BODY AND ELECTRICAL COUPLING MEANS CARRIED BY SAID HANDLE AND CONNECTED WITH SAID COIL TO COUPLE ELECTRICAL ENERGY TO SAID RESISTANCE COIL.
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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) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |