Patent US2609998A successfully refreshed from Google Patents.
US2609998A
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US
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Tension control system
Assignee: General Electric Co
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Filing: 1945-10-30
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Granted: 1952-09-09
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Expires: 1965-10-30
Abstract
No abstract record available.
Inventors
- 👤 Arthur W Sear
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:41
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/43
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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FR587628A
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US1700981A
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US1865410A
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US2012208A
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US2304913A
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US2338605A
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US2328322A
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US2462558A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-09 | 1956-03-10 | 1956-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-09 | 1960-03-10 | 1960-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-09 | 1964-03-10 | 1964-09-09 | $7700.00 | Window Closed / Lapsed |