US3494748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxidation resistant coating and article
Assignee: Xerox Corp
•
Filing: 1966-12-16
•
Granted: 1970-02-10
•
Expires: 1986-12-16
Abstract
No abstract record available.
Inventors
- 👤 Hoyt H Todd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:13
CPC Classifications
C; C23; C23C; C23C30/00; F; F01; F01D; F01D25/00; F01D25/005; Y; Y02; Y02T; Y02T50/00; Y02T50/60; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12674; Y10T428/12771; Y10T428/12861; Y10T428/12875
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1162342A
Cited
US3129069A
Cited
US3066042A
Cited
US3073015A
Cited
US3215512A
Cited
US3268306A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-09 | 1973-08-11 | 1974-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-09 | 1977-08-11 | 1978-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-09 | 1981-08-11 | 1982-02-10 | $7700.00 | Window Closed / Lapsed |