US2885524A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric resistance devices
Assignee: TECHNOGRAPH PRINTED CIRCUITS L
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Filing: 1953-08-26
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Granted: 1959-05-05
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Expires: 1973-08-26
Abstract
No abstract record available.
Inventors
- 👤 Eisler Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:46
CPC Classifications
G; G01; G01L; G01L1/00; G01L1/20; G01L1/22; G01L1/2287; H; H01; H01C; H01C17/00; H01C17/22; H01C17/23; H01C17/24; H01C17/2416; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49083; Y10T29/49103
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A METHOD OF ADJUSTING THE OHMIC VALUE OF AN ELECTRIC RESISTANCE DEVICE CONSISTING OF AN INSULATING BASE WHICH CARRIES AT LEAST ONE METALLIC RESISTANCE PATTERN FORMED FROM A SHEET OF METAL FOIL, WHICH METHOD COMPRISES SUBJECTING SAID METALLIC PATTERN TO A METAL REMOVING TREATMENT REDUCING THE THICKNESS OF SAID PATTERN.
Claim 2
Independent Claim
50 words
A METHOD OF ADJUSTING THE OHMIC VALUE OF AN ELECTRIC RESISTANCE DEVICE CONSISTING OF AN INSULATING BASE WHICH CARRIES AT LEAST ONE METALLIC RESISTANCE PATTERN FORMED FROM A SHEET OF METAL FOIL, WHICH METHOD COMPRISES SUBJECTING SAID METALLIC PATTERN TO A METAL REMOVING TREATMENT REDUCING THE THICKNESS OF SAID PATTERN.
References Cited (Backward Citations)
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US2336334A
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US2457616A
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US2553762A
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US2662957A
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US2621276A
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US2537671A
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US2600485A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-04 | 1962-11-03 | 1963-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-04 | 1966-11-03 | 1967-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-04 | 1970-11-03 | 1971-05-05 | $7700.00 | Window Closed / Lapsed |