Patent US3025992A successfully refreshed from Google Patents.
US3025992A
Expired / Lapsed
US
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Reinforced plastic storage tanks and method of making same
Assignee: Individual
•
Filing: 1959-07-24
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Granted: 1962-03-20
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Expires: 1979-07-24
Abstract
No abstract record available.
Inventors
- 👤 Frederick H Humphrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:18
CPC Classifications
B; B65; B65D; B65D90/00; B65D90/02; B65D90/029; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49874
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB189809143A
Cited
US783148A
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US1138394A
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US1434897A
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US1859632A
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US1966244A
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FR839018A
Cited
US2402253A
Cited
US2809762A
Cited
US2838261A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-19 | 1965-09-18 | 1966-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-19 | 1969-09-18 | 1970-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-19 | 1973-09-18 | 1974-03-20 | $7700.00 | Window Closed / Lapsed |