Patent US3466672A successfully refreshed from Google Patents.
US3466672A
Expired / Lapsed
US
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Fluid tank with dump valve
Assignee: WELBOURNE D MCGAHEE
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Filing: 1966-06-01
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Granted: 1969-09-16
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Expires: 1986-06-01
Abstract
No abstract record available.
Inventors
- 👤 Welbourne D Mcgahee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:05
CPC Classifications
E; E03; E03D; E03D1/00; E03D1/30; E03D1/302
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1063125A
Cited
US2740129A
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US2741776A
Cited
US2884648A
Cited
US2883675A
Cited
US3088122A
Cited
US3320622A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-15 | 1973-03-17 | 1973-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-15 | 1977-03-17 | 1977-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-15 | 1981-03-17 | 1981-09-16 | $7700.00 | Window Closed / Lapsed |