US3065571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite material of platinum alloy and glass
Assignee: Engelhard Industries Inc
•
Filing: 1957-10-10
•
Granted: 1962-11-27
•
Expires: 1977-10-10
Abstract
No abstract record available.
Inventors
- 👤 James S Hill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:41
CPC Classifications
C; C03; C03C; C03C27/00; C03C27/02; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/929
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
A COMPOSITE MATERIAL COMPRISING GLASS BONDED TO AN ALLOY OF ABOUT 90 PERCENT TO 99.9 PERCENT BY WEIGHT OF PLATINUM AND ABOUT 10 PERCEENT TO 0.1 PERCENT BY WEIGHT OF SILVER.
Claim 2
Dependent Claim
31 words
A COMPOSITE MATERIAL COMPRISING GLASS BONDED TO AN ALLOY OF ABOUT 90 PERCENT TO 99.9 PERCENT BY WEIGHT OF PLATINUM AND ABOUT 10 PERCEENT TO 0.1 PERCENT BY WEIGHT OF SILVER.
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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) | 1965-11-26 | 1966-05-28 | 1966-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-26 | 1970-05-28 | 1970-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-26 | 1974-05-28 | 1974-11-27 | $7700.00 | Window Closed / Lapsed |