Patent US2548313A successfully refreshed from Google Patents.
US2548313A
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Assignee: Lovell Manufacturing Co
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Filing: 1946-03-06
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Granted: 1951-04-10
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Expires: 1966-03-06
Abstract
No abstract record available.
Inventors
- 👤 Walter L Kauffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:34
CPC Classifications
D; D06; D06F; D06F34/00; D06F34/14; D06F34/18; D06F2101/00; D06F2103/00; D06F2103/28; D06F2103/32; D06F2105/00; D06F2105/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1675160A
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US2050625A
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US2113770A
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US2203422A
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US2418275A
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US2333000A
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US2406494A
Cited
US2398880A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-09 | 1954-10-09 | 1955-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-09 | 1958-10-09 | 1959-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-09 | 1962-10-09 | 1963-04-10 | $7700.00 | Window Closed / Lapsed |