US2808962A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tag holder
Assignee: Individual
•
Filing: 1953-04-01
•
Granted: 1957-10-08
•
Expires: 1973-04-01
Abstract
No abstract record available.
Inventors
- 👤 Warmath Perry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:01
CPC Classifications
G; G09; G09F; G09F3/00; G09F3/02; G09F3/08; G09F3/18; G09F3/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1937024A
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AT145223B
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US2325039A
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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) | 1960-10-07 | 1961-04-08 | 1961-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-07 | 1965-04-08 | 1965-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-07 | 1969-04-08 | 1969-10-08 | $7700.00 | Window Closed / Lapsed |