Patent US2784577A successfully refreshed from Google Patents.
US2784577A
Expired / Lapsed
US
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Weighted coaster
Assignee: Individual
•
Filing: 1955-09-23
•
Granted: 1957-03-12
•
Expires: 1975-09-23
Abstract
No abstract record available.
Inventors
- 👤 Gordon T Beaham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:12
CPC Classifications
A; A47; A47G; A47G23/00; A47G23/02; A47G23/0208; A47G23/0216; Y; Y10; Y10S; Y10S248/00; Y10S248/91
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US310639A
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US735883A
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GB190511310A
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US1022442A
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US1603954A
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US1786733A
Cited
US2213837A
Cited
US2178812A
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US2352684A
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US2493633A
Cited
US2672742A
Cited
US2589098A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-03-11 | 1960-09-10 | 1961-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-11 | 1964-09-10 | 1965-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-11 | 1968-09-10 | 1969-03-12 | $7700.00 | Window Closed / Lapsed |