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US2756112A
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US
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Assignee: Individual
•
Filing: 1952-12-18
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Granted: 1956-07-24
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Expires: 1972-12-18
Abstract
No abstract record available.
Inventors
- 👤 Glenn C Knutson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:50
CPC Classifications
B; B65; B65G; B65G65/00; B65G2814/00; B65G2814/02; B65G2814/0217; B65G2814/0223
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US940583A
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US1479990A
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US1550311A
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FR694555A
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US1958661A
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US2498143A
Cited
US2595333A
Cited
US2651438A
Cited
US2671696A
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US2719058A
Cited
US2678241A
Cited
US2677474A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-24 | 1960-01-23 | 1960-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-24 | 1964-01-23 | 1964-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-24 | 1968-01-23 | 1968-07-24 | $7700.00 | Window Closed / Lapsed |