US2549658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1946-10-26
•
Granted: 1951-04-17
•
Expires: 1966-10-26
Abstract
No abstract record available.
Inventors
- 👤 Louis H Blythe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:35
CPC Classifications
G; G09; G09F; G09F13/00; G09F13/04; G09F13/08; G09F13/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1032119A
Cited
US1580597A
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US1886634A
Cited
US2064849A
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US2074671A
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US2125358A
Cited
US2182334A
Cited
US2239340A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-16 | 1954-10-16 | 1955-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-16 | 1958-10-16 | 1959-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-16 | 1962-10-16 | 1963-04-17 | $7700.00 | Window Closed / Lapsed |