US2585128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aluminum optical mirror and method of making same
Assignee: Bendix Aviation Corp
•
Filing: 1946-03-01
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Granted: 1952-02-12
•
Expires: 1966-03-01
Abstract
No abstract record available.
Inventors
- 👤 James A Howe
- 👤 Michael T Nevalonny
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:33
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/02; C23C14/024; C23C14/025; C25; C25D; C25D11/00; C25D11/02; C25D11/04; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/932; Y10S428/9335; Y10S428/938; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12542; Y10T428/12611; Y10T428/12771; Y10T428/12861; Y10T428/12896
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
THE METHOD OF MAKING ALUMINUM MIRRORS COMPRISING MACHINNING AN ALUMINUM MIRROR BLANK TO THE FINISHED DIMENSIONS OF THE MIRROR TO BE FORMED, OXIDIZING THE MACHINED SURFACE, LAPPING THE MACHINED OXIDIZED SURFACE TO A DESIRED DEGREE OF OPTICAL ACCURACY, AND DEPOSITING BY VAPORIZATION A FILM OF MANGANESE ON SAID OXIDIZED SURFACE AND A FILM OF SILVER.
Claim 2
Independent Claim
55 words
THE METHOD OF MAKING ALUMINUM MIRRORS COMPRISING MACHINNING AN ALUMINUM MIRROR BLANK TO THE FINISHED DIMENSIONS OF THE MIRROR TO BE FORMED, OXIDIZING THE MACHINED SURFACE, LAPPING THE MACHINED OXIDIZED SURFACE TO A DESIRED DEGREE OF OPTICAL ACCURACY, AND DEPOSITING BY VAPORIZATION A FILM OF MANGANESE ON SAID OXIDIZED SURFACE AND A FILM OF SILVER.
References Cited (Backward Citations)
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Cited
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Cited
US2482054A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-11 | 1955-08-13 | 1956-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-11 | 1959-08-13 | 1960-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-11 | 1963-08-13 | 1964-02-12 | $7700.00 | Window Closed / Lapsed |