Patent US2750832A successfully refreshed from Google Patents.
US2750832A
Expired / Lapsed
US
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Electrically conducting filters and mirrors
Assignee: Libbey Owens Ford Glass Co
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Filing: 1951-06-08
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Granted: 1956-06-19
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Expires: 1971-06-08
Abstract
No abstract record available.
Inventors
- 👤 Willard L Morgan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:03
CPC Classifications
C; C03; C03C; C03C17/00; C03C17/34; C03C17/36; C03C17/3602; C03C17/3615; C03C17/3618; C03C17/3621; C03C17/3642; C03C17/3649; C03C17/3655; C03C17/3657; C03C17/3663; C03C17/3668; C03C17/3671; C03C2217/00; C03C2217/70; C03C2217/78; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24777; Y10T428/24793; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
IN A PARTIALLY TRANSPARENT AND PARTIALLY REFLECTIVE ELECTRICALLY CONDUCTING UNIT, A TRANSPARENT SUPPORT BODY, A TRANSPARENT ELECTRICALLY CONDUCTING LAYER OF GOLD HAVING A THICKNESS OF NOT MORE THAN 150 ANGSTROM UNITS SECURED TO A SURFACE OF SAID SUPPORT BODY, AND ALTERNATELY ARRANGED SUBSTANTIALLY TRANSPARENT LAYERS OF TITANIUM DIOXIDE AND MAGNESIUM FLUORIDE APPLIED ONE UPON THE OTHER AND UPON SAID LAYER OF GOLD, SAID LAYERS OF TITANIUM DIOXIDE AND MAGNESIUM FLUORIDE COACTING TO REFLECT A PORTION OF
Claim 2
Dependent Claim
76 words
IN A PARTIALLY TRANSPARENT AND PARTIALLY REFLECTIVE ELECTRICALLY CONDUCTING UNIT, A TRANSPARENT SUPPORT BODY, A TRANSPARENT ELECTRICALLY CONDUCTING LAYER OF GOLD HAVING A THICKNESS OF NOT MORE THAN 150 ANGSTROM UNITS SECURED TO A SURFACE OF SAID SUPPORT BODY, AND ALTERNATELY ARRANGED SUBSTANTIALLY TRANSPARENT LAYERS OF TITANIUM DIOXIDE AND MAGNESIUM FLUORIDE APPLIED ONE UPON THE OTHER AND UPON SAID LAYER OF GOLD, SAID LAYERS OF TITANIUM DIOXIDE AND MAGNESIUM FLUORIDE COACTING TO REFLECT A PORTION OF
References Cited (Backward Citations)
US1884665A
Cited
US2021661A
Cited
US2333534A
Cited
US2346483A
Cited
US2429420A
Cited
US2482054A
Cited
US2519545A
Cited
US2501563A
Cited
US2519722A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-19 | 1959-12-19 | 1960-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-19 | 1963-12-19 | 1964-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-19 | 1967-12-19 | 1968-06-19 | $7700.00 | Window Closed / Lapsed |