US2455348A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of making sparking wheels
Assignee: Argus Inc
•
Filing: 1945-08-25
•
Granted: 1948-12-07
•
Expires: 1965-08-25
Abstract
No abstract record available.
Inventors
- 👤 Carl A Barstow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:17
CPC Classifications
F; F23; F23Q; F23Q2/00; F23Q2/34; F23Q2/46; B; B23; B23P; B23P9/00; B23P9/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US199308A
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US329811A
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US372049A
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US372050A
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US772841A
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GB110670A
Cited
US2070730A
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US2111357A
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US2098865A
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US2297983A
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US2367597A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-12-07 | 1952-06-07 | 1952-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-12-07 | 1956-06-07 | 1956-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-12-07 | 1960-06-07 | 1960-12-07 | $7700.00 | Window Closed / Lapsed |