Patent US3462040A successfully refreshed from Google Patents.
US3462040A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for reducing the evaporation of water from dams,tanks and like water storage units
Assignee: Individual
•
Filing: 1966-11-17
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Granted: 1969-08-19
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Expires: 1986-11-17
Abstract
No abstract record available.
Inventors
- 👤 James Galloway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:34
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB269706A
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GB291618A
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US1712321A
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US1734623A
Cited
US1900319A
Cited
FR840214A
Cited
US2281748A
Cited
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Cited
US2867346A
Cited
US2919047A
Cited
US2974822A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-18 | 1973-02-17 | 1973-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-18 | 1977-02-17 | 1977-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-18 | 1981-02-17 | 1981-08-19 | $7700.00 | Window Closed / Lapsed |