US2666581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Indicator ring
Assignee: Individual
•
Filing: 1949-04-29
•
Granted: 1954-01-19
•
Expires: 1969-04-29
Abstract
No abstract record available.
Inventors
- 👤 James J Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:39
CPC Classifications
A; A44; A44C; A44C23/00; G; G06; G06M; G06M1/00; G06M1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US182177A
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US188738A
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US444354A
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US543269A
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US698356A
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US1172793A
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US1355440A
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US1437353A
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US1651558A
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US2187664A
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US2461130A
Cited
US2453955A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-18 | 1957-07-20 | 1958-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-18 | 1961-07-20 | 1962-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-18 | 1965-07-20 | 1966-01-19 | $7700.00 | Window Closed / Lapsed |