Patent US2801428A successfully refreshed from Google Patents.
US2801428A
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US
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Assignee: Individual
•
Filing: 1954-05-07
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Granted: 1957-08-06
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Expires: 1974-05-07
Abstract
No abstract record available.
Inventors
- 👤 Ralph W Streeter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:04
CPC Classifications
A; A47; A47C; A47C21/00; A47C21/04; A47C21/048; A47C21/042; A47C21/044
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US785099A
Cited
US1092298A
Cited
US1134009A
Cited
US2183533A
Cited
US2104024A
Cited
US2188078A
Cited
US2392948A
Cited
US2691178A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-05 | 1961-02-04 | 1961-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-05 | 1965-02-04 | 1965-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-05 | 1969-02-04 | 1969-08-06 | $7700.00 | Window Closed / Lapsed |