US2999034A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacture of line plates, scales, and the like
Assignee: Firma Wenczler and Heidenhain
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Filing: 1960-10-21
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Granted: 1961-09-05
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Expires: 1980-10-21
Abstract
No abstract record available.
Inventors
- 👤 Heidenhain Johannes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:24
CPC Classifications
C; C03; C03C; C03C17/00; C03C17/34; C03C17/36; C03C17/3602; C03C17/3605; C03C17/3613; C03C17/3649; C03C17/3657; C23; C23C; C23C14/00; C23C14/02; C23C14/024; C23C14/04; C23C14/042; C23F; C23F1/00; C23F1/02; G; G01; G01B; G01B3/00; G01B3/002; G01B3/004; G03; G03F; G03F7/00; G03F7/0005; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49204
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A METHOD OF MANUFACTURING LINE PLATES, SCALES, AND THE LIKE, BY MEANS OF LAYERS APPLIED TO A CARRIER PLATE IN FORM OF VAPORS IN A HIGH VACUUM, COMPRISING THE STEPS OF APPLYING AT LEAST TWO SUPERPOSED LAYERS ONTO SAID CARRIER PLATE CARRYING A LINE BASE OF A DESIGN COMPLEMENTARY TO THAT OF THE LINE PLATES TO BE PRODUCED, ONE OF SAID LAYERS BEING A LAYER OF TRANSPARENT INORGANIC MATERIAL APPLIED WITH A THICKNESS CORRESPONDING WITH ONEQUARTER OF THE WAVE LENGTH OF THE LIGHT AT WHICH THE FINISHED LINE PLATE IS TO BE USED, AND THE OTHER OF SAID LAYERS BEING A LAYER OF NON-TRANSPARENT METAL MATERIAL, AND TREATING SAID TWO LAYERS TO REMOVE THE PART OF SAID LINE BASE OF A DESIGN COMPLEMENTARY TO THAT OF THE LINE PLATES TO BE PRODUCED TOGETHER WITH THE PORTIONS OF SAID TWO LAYERS CARRIED BY SAID LINE BASE.
Claim 2
Independent Claim
145 words
A METHOD OF MANUFACTURING LINE PLATES, SCALES, AND THE LIKE, BY MEANS OF LAYERS APPLIED TO A CARRIER PLATE IN FORM OF VAPORS IN A HIGH VACUUM, COMPRISING THE STEPS OF APPLYING AT LEAST TWO SUPERPOSED LAYERS ONTO SAID CARRIER PLATE CARRYING A LINE BASE OF A DESIGN COMPLEMENTARY TO THAT OF THE LINE PLATES TO BE PRODUCED, ONE OF SAID LAYERS BEING A LAYER OF TRANSPARENT INORGANIC MATERIAL APPLIED WITH A THICKNESS CORRESPONDING WITH ONEQUARTER OF THE WAVE LENGTH OF THE LIGHT AT WHICH THE FINISHED LINE PLATE IS TO BE USED, AND THE OTHER OF SAID LAYERS BEING A LAYER OF NON-TRANSPARENT METAL MATERIAL, AND TREATING SAID TWO LAYERS TO REMOVE THE PART OF SAID LINE BASE OF A DESIGN COMPLEMENTARY TO THAT OF THE LINE PLATES TO BE PRODUCED TOGETHER WITH THE PORTIONS OF SAID TWO LAYERS CARRIED BY SAID LINE BASE.
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) | 1964-09-04 | 1965-03-06 | 1965-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-04 | 1969-03-06 | 1969-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-04 | 1973-03-06 | 1973-09-05 | $7700.00 | Window Closed / Lapsed |