Patent US3542530A successfully refreshed from Google Patents.
US3542530A
Expired / Lapsed
US
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Nickel or cobalt base with a coating containing iron chromium and aluminum
Assignee: RTX Corp
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Filing: 1968-05-23
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Granted: 1970-11-24
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Expires: 1988-05-23
Abstract
No abstract record available.
Inventors
- 👤 Frank P Talboom Jr
- 👤 Johannes Grafwallner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:17
CPC Classifications
C; C22; C22C; C22C38/00; C22C38/18; C23; C23C; C23C14/00; C23C14/06; C23C14/14; C23C14/16; C23C30/00; Y; Y02; Y02T; Y02T50/00; Y02T50/60; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/926; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12806; Y10T428/12826; Y10T428/12847; Y10T428/12854; Y10T428/12861; Y10T428/12931
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2105293A
Cited
US2946676A
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US2955937A
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US3113991A
Cited
US3027252A
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US3298826A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-23 | 1974-05-25 | 1974-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-23 | 1978-05-25 | 1978-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-23 | 1982-05-25 | 1982-11-24 | $7700.00 | Window Closed / Lapsed |