US2694023A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal treating flux
Assignee: MW Kellogg Co
•
Filing: 1950-04-08
•
Granted: 1954-11-09
•
Expires: 1970-04-08
Abstract
No abstract record available.
Inventors
- 👤 Robert K Hopkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:24
CPC Classifications
C; C22; C22B; C22B9/00; C22B9/16; C22B9/18; B; B23; B23K; B23K35/00; B23K35/22; B23K35/36; B23K35/3601; B23K35/361
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US977406A
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US1097926A
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US2290961A
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US2370467A
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US2435852A
Cited
US2510154A
Cited
US2510155A
Cited
US2585568A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-08 | 1958-05-10 | 1958-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-08 | 1962-05-10 | 1962-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-08 | 1966-05-10 | 1966-11-09 | $7700.00 | Window Closed / Lapsed |