US3528861A
Expired / Lapsed
US
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Method for coating the superalloys
Assignee: RTX Corp
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Filing: 1968-05-23
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Granted: 1970-09-15
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Expires: 1988-05-23
Abstract
No abstract record available.
Inventors
- 👤 Richard C Elam
- 👤 John A Petrusha
- 👤 Frank P Talboom Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:44
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/58; C23C14/5806; C22; C22C; C22C19/00; C22C19/03; C22C19/07; C22F; C22F1/00; C22F1/08; C22F1/10; C23C14/06; C23C14/14; C23C14/16; C23C14/5886; C23F; C23F17/00; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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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) | 1973-09-14 | 1974-03-16 | 1974-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-14 | 1978-03-16 | 1978-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-14 | 1982-03-16 | 1982-09-15 | $7700.00 | Window Closed / Lapsed |