US2574117A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bubble-blowing device
Assignee: Individual
•
Filing: 1947-07-01
•
Granted: 1951-11-06
•
Expires: 1967-07-01
Abstract
No abstract record available.
Inventors
- 👤 Frederic G Ludwig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:17
CPC Classifications
A; A63; A63H; A63H33/00; A63H33/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US147203A
Cited
US555411A
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US1017384A
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US1115556A
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US1667353A
Cited
FR624979A
Cited
FR633573A
Cited
AU2000229A
Cited
US2393039A
Cited
US2452794A
Cited
US2560582A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-05 | 1955-05-07 | 1955-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-05 | 1959-05-07 | 1959-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-05 | 1963-05-07 | 1963-11-06 | $7700.00 | Window Closed / Lapsed |