US2804339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Injection nozzle
Assignee: Union Carbide Corp
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Filing: 1955-03-30
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Granted: 1957-08-27
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Expires: 1975-03-30
Abstract
No abstract record available.
Inventors
- 👤 Daniel H Barbour
- 👤 Jr Albert Hoffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:48
CPC Classifications
B; B05; B05B; B05B1/00; B05B1/34; B01; B01J; B01J4/00; B01J4/001; B05B1/02; B22; B22D; B22D1/00; B22D1/002; B22D1/005; C; C21; C21C; C21C5/00; C21C5/28; C21C5/42; C21C5/46; C21C5/4606; C21C5/4613; F; F27; F27D; F27D3/00; F27D3/16
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) | 1960-08-26 | 1961-02-25 | 1961-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-26 | 1965-02-25 | 1965-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-26 | 1969-02-25 | 1969-08-27 | $7700.00 | Window Closed / Lapsed |