US3067879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Skim tank
Assignee: Swimquip Inc
•
Filing: 1959-02-02
•
Granted: 1962-12-11
•
Expires: 1979-02-02
Abstract
No abstract record available.
Inventors
- 👤 William O Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:53
CPC Classifications
E; E04; E04H; E04H4/00; E04H4/12; E04H4/1209; E04H4/1272; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7313; Y10T137/7323; Y10T137/7358; Y10T137/7439; Y10T137/7485
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1191628A
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US1572964A
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GB348794A
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US2045909A
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US2252687A
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US2701235A
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US2739939A
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US2740422A
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US2809752A
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US2844255A
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US2914180A
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US2979206A
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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) | 1965-12-10 | 1966-06-11 | 1966-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-10 | 1970-06-11 | 1970-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-10 | 1974-06-11 | 1974-12-11 | $7700.00 | Window Closed / Lapsed |