US2907672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aurous coating on an optical element
Assignee: Ford Motor Co
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Filing: 1958-08-25
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Granted: 1959-10-06
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Expires: 1978-08-25
Abstract
No abstract record available.
Inventors
- 👤 Max J Irland
- 👤 Eugene B Schermer
- 👤 Jacob E Goldman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:16
CPC Classifications
G02B1/105; G; G02; G02B; G02B1/00; G02B1/10; G02B1/14; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/926; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12542; Y10T428/12556; Y10T428/12569; Y10T428/12611; Y10T428/12674; Y10T428/12771; Y10T428/12861; Y10T428/12889; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31699
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
AN OPTICAL ELEMENT HAIVNG A RESISTANCE TO SCRATCHING AND MECHANICAL ABRASION OF THE SAME ORDER AS GLASS AND COMPRISING A MASSIVE SUBSTRATE WHICH IS MATERIALLY SOFTER THAN GLASS, A LAYER OF GERMANIUM AFJACENT THE SOFT SUBSTRATE, A LAYER OF GOLD UPON THE LAYER OF GERMANIUM AND A LAYER OF AN OXIDE OF SILICON SUPERIMPOSED UPON THE GOLD LAYER.
Claim 2
Dependent Claim
58 words
AN OPTICAL ELEMENT HAIVNG A RESISTANCE TO SCRATCHING AND MECHANICAL ABRASION OF THE SAME ORDER AS GLASS AND COMPRISING A MASSIVE SUBSTRATE WHICH IS MATERIALLY SOFTER THAN GLASS, A LAYER OF GERMANIUM AFJACENT THE SOFT SUBSTRATE, A LAYER OF GOLD UPON THE LAYER OF GERMANIUM AND A LAYER OF AN OXIDE OF SILICON SUPERIMPOSED UPON THE GOLD LAYER.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-05 | 1963-04-06 | 1963-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-05 | 1967-04-06 | 1967-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-05 | 1971-04-06 | 1971-10-06 | $7700.00 | Window Closed / Lapsed |