US3499780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a coated aluminum reflector
Assignee: General Electric Co
•
Filing: 1966-12-06
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Granted: 1970-03-10
•
Expires: 1986-12-06
Abstract
No abstract record available.
Inventors
- 👤 Theodore L Etherington
- 👤 Herbert L Curry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:43
CPC Classifications
C; C23; C23F; C23F3/00; C23F3/02; C23F3/03; C04; C04B; C04B28/00; C04B28/24; C04B28/26; C23G; C23G1/00; C23G1/02; C23G1/12; C23G1/125; G; G02; G02B; G02B5/00; G02B5/08; C04B2111/00; C04B2111/00474; C04B2111/00482
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
THE METHOD OF MAKING A REFLECTIVE ALUMINUM ARTICLE WHICH COMPRISES TREATING THE ALUMINUM ARTICLE TO PROVIDE A HIGHLY SPECULAR REFECTIVE SURFACE THEREON OF AT LEAST 80% SPECULAR REFECTANCE WHILE REMOVING ANY OXIDE COATING THEREON, IMMEDIATELY APPLYING A COATING OF A SILICATE SOLUTION ON THE THUS TREATED SURFACE, AND HEATING THE THUS APPLIED COATING AT A TEMPERATURE OF AT LEAST ABOUT 600* F. FOR REMOVING SUBSTANTIALLY ALL THE CHEMICALLY BOUND WATER THEREFROM FOR PRODUCING A HARD, TIGHTLY ADHERENT, TRANSPARENT SILICATE COATING ON THE SPECULAR REFECTIVE ALUMINUM SURFACE.
Claim 2
Independent Claim
86 words
THE METHOD OF MAKING A REFLECTIVE ALUMINUM ARTICLE WHICH COMPRISES TREATING THE ALUMINUM ARTICLE TO PROVIDE A HIGHLY SPECULAR REFECTIVE SURFACE THEREON OF AT LEAST 80% SPECULAR REFECTANCE WHILE REMOVING ANY OXIDE COATING THEREON, IMMEDIATELY APPLYING A COATING OF A SILICATE SOLUTION ON THE THUS TREATED SURFACE, AND HEATING THE THUS APPLIED COATING AT A TEMPERATURE OF AT LEAST ABOUT 600* F. FOR REMOVING SUBSTANTIALLY ALL THE CHEMICALLY BOUND WATER THEREFROM FOR PRODUCING A HARD, TIGHTLY ADHERENT, TRANSPARENT SILICATE COATING ON THE SPECULAR REFECTIVE ALUMINUM SURFACE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-09 | 1973-09-08 | 1974-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-09 | 1977-09-08 | 1978-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-09 | 1981-09-08 | 1982-03-10 | $7700.00 | Window Closed / Lapsed |