US3460902A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for hydrogen cyanide and acetylene production in an arc heater having a rotating arc
Assignee: Westinghouse Electric Corp
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Filing: 1967-08-02
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Granted: 1969-08-12
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Expires: 1987-08-02
Abstract
No abstract record available.
Inventors
- 👤 Chikara Hirayama
- 👤 Daniel A Maniero
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:13
CPC Classifications
C; C01; C01C; C01C3/00; C01C3/02; C01C3/0208; C01C3/025; B; B01; B01J; B01J19/00; B01J19/08; B01J19/087; B01J19/088; C07; C07C; C07C2/00; C07C2/76; C07C2/80
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) | 1972-08-11 | 1973-02-10 | 1973-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-11 | 1977-02-10 | 1977-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-11 | 1981-02-10 | 1981-08-12 | $7700.00 | Window Closed / Lapsed |