US2663181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination runner and base
Assignee: Individual
•
Filing: 1950-02-28
•
Granted: 1953-12-22
•
Expires: 1970-02-28
Abstract
No abstract record available.
Inventors
- 👤 George B Collman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:13
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/84; E04B2/842; E04B2/845; E04B2/72; E04B2/723
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US963938A
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US1423991A
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US1886320A
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US1968045A
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US1999741A
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US2105588A
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US2038115A
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US2235761A
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US2269384A
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US2381635A
Cited
US2472756A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-21 | 1957-06-22 | 1957-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-21 | 1961-06-22 | 1961-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-21 | 1965-06-22 | 1965-12-22 | $7700.00 | Window Closed / Lapsed |