Patent US2885524A successfully refreshed from Google Patents.
US2885524A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric resistance devices
Assignee: TECHNOGRAPH PRINTED CIRCUITS L
•
Filing: 1953-08-26
•
Granted: 1959-05-05
•
Expires: 1973-08-26
Abstract
No abstract record available.
Inventors
- 👤 Eisler Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:42
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)
AU101011B
Cited
US2336334A
Cited
US2457616A
Cited
US2553762A
Cited
US2662957A
Cited
US2621276A
Cited
US2537671A
Cited
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 |