Patent US3532372A successfully refreshed from Google Patents.
US3532372A
Expired / Lapsed
US
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Assignee: Individual
•
Filing: 1967-09-14
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Granted: 1970-10-06
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Expires: 1987-09-14
Abstract
No abstract record available.
Inventors
- 👤 Ray D Stroud
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:29
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/08; F16L37/084; F16L37/0847; A; A61; A61B; A61B18/00; A61B18/02; Y; Y10; Y10T; Y10T403/00; Y10T403/60; Y10T403/606
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2361984A
Cited
US2350640A
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US2534100A
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US2657817A
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US2938643A
Cited
US2928533A
Cited
US3101841A
Cited
US3298415A
Cited
US3187964A
Cited
US3376996A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-05 | 1974-04-06 | 1974-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-05 | 1978-04-06 | 1978-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-05 | 1982-04-06 | 1982-10-06 | $7700.00 | Window Closed / Lapsed |