Patent US2930270A successfully refreshed from Google Patents.
US2930270A
Expired / Lapsed
US
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Tension equalizer for sheet material
Assignee: JOHN H BAILE
•
Filing: 1956-07-26
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Granted: 1960-03-29
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Expires: 1976-07-26
Abstract
No abstract record available.
Inventors
- 👤 Frank W Brey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:53
CPC Classifications
D; D06; D06C; D06C3/00; D06C2700/00; D06C2700/10; Y; Y10; Y10T; Y10T83/00; Y10T83/647; Y10T83/6656
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2410394A
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US2764237A
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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) | 1963-03-29 | 1963-09-28 | 1964-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-29 | 1967-09-28 | 1968-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-29 | 1971-09-28 | 1972-03-29 | $7700.00 | Window Closed / Lapsed |