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Patent US2828804A successfully refreshed from Google Patents.
US2828804A
Expired / Lapsed
US
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Auxiliary folding seat for boats and the like
Assignee: Individual
•
Filing: 1956-03-12
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Granted: 1958-04-01
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Expires: 1976-03-12
Abstract
No abstract record available.
Inventors
- 👤 Frank W Schwinn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:40
CPC Classifications
B; B63; B63B; B63B29/00; B63B29/02; B63B29/04; B63B29/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US820125A
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US1429867A
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US1658188A
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US1754974A
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US2484454A
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US2544896A
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US2675286A
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US2749972A
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US2689601A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-31 | 1961-09-30 | 1962-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-31 | 1965-09-30 | 1966-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-31 | 1969-09-30 | 1970-04-01 | $7700.00 | Window Closed / Lapsed |