Patent US2485200A successfully refreshed from Google Patents.
US2485200A
Expired / Lapsed
US
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Squaring mechanism
Assignee: Librascope Inc
•
Filing: 1943-10-29
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Granted: 1949-10-18
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Expires: 1963-10-29
Abstract
No abstract record available.
Inventors
- 👤 Imm Lewis William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:45
CPC Classifications
G; G06; G06G; G06G3/00; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19555
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB140442A
Cited
GB339638A
Cited
US2295997A
Cited
GB191401847A
Cited
US1581697A
Cited
US1920024A
Cited
US2065484A
Cited
US2194477A
Cited
US2179841A
Cited
US2349118A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-17 | 1953-04-18 | 1953-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-17 | 1957-04-18 | 1957-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-17 | 1961-04-18 | 1961-10-18 | $7700.00 | Window Closed / Lapsed |