US2534682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable pipe rack
Assignee: C N HOUSH
•
Filing: 1946-11-18
•
Granted: 1950-12-19
•
Expires: 1966-11-18
Abstract
No abstract record available.
Inventors
- 👤 Alces P Robishaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:04
CPC Classifications
E; E21; E21B; E21B19/00; E21B19/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US521368A
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US685011A
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US798021A
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US867661A
Cited
US1227105A
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US1563306A
Cited
US1719528A
Cited
US1740876A
Cited
US1828487A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-18 | 1954-06-19 | 1954-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-18 | 1958-06-19 | 1958-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-18 | 1962-06-19 | 1962-12-19 | $7700.00 | Window Closed / Lapsed |