US2493215A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface treating device
Assignee: American Wheelabrator & Equip
•
Filing: 1947-03-06
•
Granted: 1950-01-03
•
Expires: 1967-03-06
Abstract
No abstract record available.
Inventors
- 👤 Kenneth H Barnes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:03
CPC Classifications
B; B24; B24C; B24C5/00; B24C5/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US859863A
Cited
US2005654A
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US2170831A
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US2159051A
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US2267018A
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US2107084A
Cited
US2325517A
Cited
US2440643A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-02 | 1953-07-04 | 1954-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-02 | 1957-07-04 | 1958-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-02 | 1961-07-04 | 1962-01-03 | $7700.00 | Window Closed / Lapsed |