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US2897883A
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Thermochemical desurfacing head
Assignee: Union Carbide Corp
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Filing: 1957-10-17
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Granted: 1959-08-04
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Expires: 1977-10-17
Abstract
No abstract record available.
Inventors
- 👤 Alfred J Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:49
CPC Classifications
B; B23; B23K; B23K7/00; B23K7/06; Y; Y10; Y10S; Y10S239/00; Y10S239/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2745475A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-03 | 1963-02-02 | 1963-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-03 | 1967-02-02 | 1967-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-03 | 1971-02-02 | 1971-08-04 | $7700.00 | Window Closed / Lapsed |