US2807369A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Support for reading matter
Assignee: Individual
•
Filing: 1948-01-21
•
Granted: 1957-09-24
•
Expires: 1968-01-21
Abstract
No abstract record available.
Inventors
- 👤 Stark Dorothy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:07
CPC Classifications
A; A47; A47B; A47B65/00; A47B65/20; A47B19/00; A47B23/00; A47B23/04; A47B23/042; B; B42; B42D; B42D3/00; B42D3/12; B42D3/126; B42F; B42F17/00; B42F17/02; B42F7/00; B43; B43M; B43M99/00; B42P; B42P2241/00; B42P2241/12
Claims Analysis
Total Claims: 0
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DE22741C
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-23 | 1961-03-25 | 1961-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-23 | 1965-03-25 | 1965-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-23 | 1969-03-25 | 1969-09-24 | $7700.00 | Window Closed / Lapsed |