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US1646602A
Expired / Lapsed
US
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Oxy-fuel gas tip and process of making
Assignee: Individual
•
Filing: 1926-02-04
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Granted: 1927-10-25
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Expires: 1946-02-04
Abstract
No abstract record available.
Inventors
- 👤 Elmer H Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:06
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/46; F23D14/48; F23D14/52; F23D14/54; Y; Y02; Y02E; Y02E20/00; Y02E20/34; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49348; Y10T29/49428; Y10T29/49432
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1930-10-24 | 1931-04-25 | 1931-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-10-24 | 1935-04-25 | 1935-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-10-24 | 1939-04-25 | 1939-10-25 | $7700.00 | Window Closed / Lapsed |