US2927048A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making electrical resistors
Assignee: Individual
•
Filing: 1957-02-15
•
Granted: 1960-03-01
•
Expires: 1977-02-15
Abstract
No abstract record available.
Inventors
- 👤 Pritikin Nathan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:42
CPC Classifications
H; H01; H01C; H01C17/00; H01C17/02; H01B; H01B1/00; H01B3/00; H01B3/02; H01B3/08; H01C7/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
THE METHOD OF MAKING RESISTORS WHICH COMPRISES, APPLYING A RESISTANCE FILM AND SPACED APART TERMINALS TO AN INSULATED BASE WITH SAID RESISTANCE FILM IN ELECTRICAL CONTACT WITH SAID TERMINALS, DEPOSITING A BARRIER LAYER OF INORGANIC INSULATING MATERIAL ON SAID RESISTANCE FILM, DEPOSITING A LAYER OF FUSABLE INORGANIC INSULATING MATERIAL OVER SAID BARRIER LAYER, AND FUSING SAID LAST MENTIONED SAID BASE, SAID RESISTANCE FILM, AND SAID BARRIER LAYER BEING SELECTED TO HAVE A HIGHER SOFTENING TEMPERATURE THAN THE MATERIAL OF SAID PROTECTIVE LAYER, THE MATERIALS OF SAID BARRIER LAYER AND SAID PROTECTIVE LAYER BEING SELECTED TO RESIST DISSOLUTION OF SAID BARRIER LAYER BY THE MATERIAL OF SAID PROTECTIVE LAYER.
Claim 2
Independent Claim
108 words
THE METHOD OF MAKING RESISTORS WHICH COMPRISES, APPLYING A RESISTANCE FILM AND SPACED APART TERMINALS TO AN INSULATED BASE WITH SAID RESISTANCE FILM IN ELECTRICAL CONTACT WITH SAID TERMINALS, DEPOSITING A BARRIER LAYER OF INORGANIC INSULATING MATERIAL ON SAID RESISTANCE FILM, DEPOSITING A LAYER OF FUSABLE INORGANIC INSULATING MATERIAL OVER SAID BARRIER LAYER, AND FUSING SAID LAST MENTIONED SAID BASE, SAID RESISTANCE FILM, AND SAID BARRIER LAYER BEING SELECTED TO HAVE A HIGHER SOFTENING TEMPERATURE THAN THE MATERIAL OF SAID PROTECTIVE LAYER, THE MATERIALS OF SAID BARRIER LAYER AND SAID PROTECTIVE LAYER BEING SELECTED TO RESIST DISSOLUTION OF SAID BARRIER LAYER BY THE MATERIAL OF SAID PROTECTIVE LAYER.
References Cited (Backward Citations)
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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) | 1963-03-01 | 1963-08-31 | 1964-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-01 | 1967-08-31 | 1968-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-01 | 1971-08-31 | 1972-03-01 | $7700.00 | Window Closed / Lapsed |