Patent US2803419A successfully refreshed from Google Patents.
US2803419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foldable frame
Assignee: Individual
•
Filing: 1955-02-21
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Granted: 1957-08-20
•
Expires: 1975-02-21
Abstract
No abstract record available.
Inventors
- 👤 Lewis F Phillips
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:51
CPC Classifications
A; A47; A47B; A47B3/00; A47B3/12; A47B13/00; A47B13/02; A47B2013/026; A47B2200/00; A47B2200/0011; A47B2200/002; A47B2200/0032
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US382308A
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US509005A
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US583013A
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US759777A
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US1262356A
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US1338124A
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US1355944A
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US1845921A
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US1940565A
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US2501746A
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US2673775A
Cited
US2710733A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-19 | 1961-02-18 | 1961-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-19 | 1965-02-18 | 1965-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-19 | 1969-02-18 | 1969-08-20 | $7700.00 | Window Closed / Lapsed |