Patent US3485176A successfully refreshed from Google Patents.
US3485176A
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US
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Pumping system
Assignee: Malsbary Manufacturing Co
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Filing: 1967-04-28
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Granted: 1969-12-23
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Expires: 1987-04-28
Abstract
No abstract record available.
Inventors
- 👤 Carlyle O Telford
- 👤 Frank G Butts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:48
CPC Classifications
F; F28; F28F; F28F21/00; F28F21/06; F28F21/062; B; B08; B08B; B08B3/00; B08B3/02; B08B3/026; F04; F04B; F04B43/00; F04B43/0009; F04B43/0081; F04B43/009; F04B43/02; F04B43/025; F04B53/00; F04B53/14; F04B53/142; F04B9/00; F04B9/02; F23; F23K; F23K5/00; F23K5/02; F23K5/04; F23N; F23N1/00; F23N1/08; F23N1/085; F23N5/00; F23N5/24; F23N5/245; B08B2203/00; B08B2203/007; B08B2203/02; B08B2203/0205; B08B2203/0217; B08B2203/0241; B08B2203/027; F23N2235/00; F23N2235/30; F23N2241/00; F23N2241/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US731241A
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US1116494A
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US1840527A
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GB597106A
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US2619907A
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US2915016A
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US3261330A
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US3359909A
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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) | 1972-12-22 | 1973-06-23 | 1973-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-22 | 1977-06-23 | 1977-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-22 | 1981-06-23 | 1981-12-23 | $7700.00 | Window Closed / Lapsed |