US2637552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic caliper for sheet material handling apparatus
Assignee: CHRISTENSEN MACHINE Co
•
Filing: 1952-04-01
•
Granted: 1953-05-05
•
Expires: 1972-04-01
Abstract
No abstract record available.
Inventors
- 👤 George F Watson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:24
CPC Classifications
B; B65; B65H; B65H7/00; B65H7/02; B65H7/06; B65H7/12; Y; Y10; Y10S; Y10S271/00; Y10S271/901; Y10S33/00; Y10S33/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1077818A
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US1218988A
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US1701861A
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US2129230A
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US2260771A
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US2318132A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-04 | 1956-11-03 | 1957-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-04 | 1960-11-03 | 1961-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-04 | 1964-11-03 | 1965-05-05 | $7700.00 | Window Closed / Lapsed |