Patent US3498325A successfully refreshed from Google Patents.
US3498325A
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US
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Loading arm and quick release coupler
Assignee: Oil States Industries Inc
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Filing: 1967-09-14
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Granted: 1970-03-03
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Expires: 1987-09-14
Abstract
No abstract record available.
Inventors
- 👤 Albert A Ashton
- 👤 Walter T Krause
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:33
CPC Classifications
F; F16; F16L; F16L27/00; F16L27/08; F16L27/0861; F16L37/00; F16L37/08; F16L37/12; F16L37/1205; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/8807
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1875486A
Cited
US1478925A
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US1938829A
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US1910706A
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GB854763A
Cited
US2927607A
Cited
US3050092A
Cited
US3073343A
Cited
FR1475341A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-02 | 1973-09-01 | 1974-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-02 | 1977-09-01 | 1978-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-02 | 1981-09-01 | 1982-03-03 | $7700.00 | Window Closed / Lapsed |