US2633247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiportable pipe storage rack
Assignee: GEORGE E LITTLE
•
Filing: 1949-10-14
•
Granted: 1953-03-31
•
Expires: 1969-10-14
Abstract
No abstract record available.
Inventors
- 👤 Frank R Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:42
CPC Classifications
E; E21; E21B; E21B19/00; E21B19/14; E21B19/15
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1090955A
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US1288010A
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US1533724A
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US1684410A
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US1905596A
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US2149589A
Cited
US2284927A
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US2375116A
Cited
US2405819A
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US2464109A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-30 | 1956-09-29 | 1957-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-30 | 1960-09-29 | 1961-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-30 | 1964-09-29 | 1965-03-31 | $7700.00 | Window Closed / Lapsed |