US2685443A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot bar cutting machine
Assignee: Union Carbide Corp
•
Filing: 1952-03-06
•
Granted: 1954-08-03
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Expires: 1972-03-06
Abstract
No abstract record available.
Inventors
- 👤 Howard G Rath
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:50
CPC Classifications
B; B23; B23K; B23K7/00; B23K7/002; B23K7/003; Y; Y10; Y10S; Y10S266/00; Y10S266/902
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) | 1957-08-02 | 1958-02-01 | 1958-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-02 | 1962-02-01 | 1962-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-02 | 1966-02-01 | 1966-08-03 | $7700.00 | Window Closed / Lapsed |