Patent US2983968A successfully refreshed from Google Patents.
US2983968A
Expired / Lapsed
US
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Free standing folding bleacher
Assignee: Brunswick Corp
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Filing: 1957-01-03
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Granted: 1961-05-16
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Expires: 1977-01-03
Abstract
No abstract record available.
Inventors
- 👤 Isadore T Wurn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:57
CPC Classifications
E; E04; E04H; E04H3/00; E04H3/10; E04H3/12; E04H3/126
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US308656A
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US1477242A
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US1976567A
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US1974035A
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US2158939A
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US2207923A
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US2245825A
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US2588783A
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US2706835A
Cited
US2817121A
Cited
US2815541A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-15 | 1964-11-14 | 1965-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-15 | 1968-11-14 | 1969-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-15 | 1972-11-14 | 1973-05-16 | $7700.00 | Window Closed / Lapsed |