Patent US2617547A successfully refreshed from Google Patents.
US2617547A
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US
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Pipe loading device
Assignee: Individual
•
Filing: 1949-11-14
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Granted: 1952-11-11
•
Expires: 1969-11-14
Abstract
No abstract record available.
Inventors
- 👤 Whetstine B Pridy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:00
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/40; E; E21; E21B; E21B19/00; E21B19/14; E21B19/15; Y; Y10; Y10S; Y10S414/00; Y10S414/123
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2023184A
Cited
US2123505A
Cited
US2194125A
Cited
US2352726A
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US2400803A
Cited
US2418726A
Cited
US2487305A
Cited
US2487808A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-11 | 1956-05-12 | 1956-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-11 | 1960-05-12 | 1960-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-11 | 1964-05-12 | 1964-11-11 | $7700.00 | Window Closed / Lapsed |