US2770870A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermosensitive laminated metals
Assignee: HA Wilson Co
•
Filing: 1952-05-31
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Granted: 1956-11-20
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Expires: 1972-05-31
Abstract
No abstract record available.
Inventors
- 👤 Victor G Mooradian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:10
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/01; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/125; Y10T428/12771; Y10T428/12861; Y10T428/12903; Y10T428/1291
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
THERMOSENSITIVE LAMINATED METAL IN WHICH A LAYER OF METAL OF RELATIVELY LOW COEFFICIENT OF THERMAL EXPANSION CONSISTING ESSENTIALLY OF 551/2% TO 61% COBALT, 8% TO 131/2% CHROMIUM, AND 301/2% TO 351/2% IS BONDED TO A LAYER OF METAL OF RELATIVELY HIGH COEFFICIENT OF THERMAL EXPANSION, THE COEFFICIENT OF THERMAL EXPANSION OF SAID LOW EXPANDING LAYER BEING SUBSTANTIALLY UNAFFECTED BY SMALL
Claim 2
Dependent Claim
60 words
THERMOSENSITIVE LAMINATED METAL IN WHICH A LAYER OF METAL OF RELATIVELY LOW COEFFICIENT OF THERMAL EXPANSION CONSISTING ESSENTIALLY OF 551/2% TO 61% COBALT, 8% TO 131/2% CHROMIUM, AND 301/2% TO 351/2% IS BONDED TO A LAYER OF METAL OF RELATIVELY HIGH COEFFICIENT OF THERMAL EXPANSION, THE COEFFICIENT OF THERMAL EXPANSION OF SAID LOW EXPANDING LAYER BEING SUBSTANTIALLY UNAFFECTED BY SMALL
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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) | 1959-11-20 | 1960-05-21 | 1960-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-20 | 1964-05-21 | 1964-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-20 | 1968-05-21 | 1968-11-20 | $7700.00 | Window Closed / Lapsed |