US3985513A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nickel-base metal-ceramic heat-resistant sealing material
Assignee: Individual
•
Filing: 1975-06-02
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Granted: 1976-10-12
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Expires: 1995-06-02
Abstract
Abstract A nickel-base metal-ceramic heat-resistant sealing material, comprising, weight per cent: }silicon dioxide, from 0.5 to 8.0 }boron nitride, from 1.0 to 10.0 }nickel, the balance. } The material has a small hardness number ranging from 25 to 40 kg/mm2 and an enhanced heat resistance and thermal stability.
Inventors
- 👤 Alexandr Fedorovich Silaev
- 👤 Raisa Stepanovna Matjushenko
- 👤 Larisa Nikolaevna Popova
- 👤 Vasily Alexandrovich Kurganov
- 👤 Mikhail Ivanovich Markin
- 👤 Viktor Ivanovich Kurakin
- 👤 Nina Maximovna Fatjuk
- 👤 Anna Kapitonovna Nazarova
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:17
CPC Classifications
C; C22; C22C; C22C32/00; C22C32/0047; C22C32/0068
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
30 words
A nickel-base metal-ceramic heat-resistant sealing material, consisting essentially of in weight per cent: ______________________________________
silicon dioxide,
from 0.5 to 8.0
boron nitride, from 1.0 to 10.0
nickel, the balance.
______________________________________
Claim 2
Dependent Claim
30 words
A nickel-base metal-ceramic heat-resistant sealing material, consisting essentially of in weight per cent: ______________________________________
silicon dioxide,
from 0.5 to 8.0
boron nitride, from 1.0 to 10.0
nickel, the balance.
______________________________________
Claim 3
Dependent Claim
18 words
The sealing material of claim 1 containing 0.5 per cent silicon dioxide and 1.0 per cent boron nitride.
Claim 4
Dependent Claim
18 words
The sealing material of claim 1 containing 5.0 per cent silicon dioxide and 5.0 per cent boron nitride.
Claim 5
Dependent Claim
18 words
The sealing material of claim 1 containing 8.0 per cent silicon dioxide and 10.0 per cent boron nitride.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-10-12 | 1980-04-12 | 1980-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-12 | 1984-04-12 | 1984-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-12 | 1988-04-12 | 1988-10-12 | $7700.00 | Window Closed / Lapsed |