Patent US2668637A successfully refreshed from Google Patents.
US2668637A
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Flexible, nonelastic container of viscous material with rotary compress discharge pump
Assignee: West Disinfecting Co
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Filing: 1949-11-23
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Granted: 1954-02-09
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Expires: 1969-11-23
Abstract
No abstract record available.
Inventors
- 👤 Burdette B Gilmore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:35
CPC Classifications
G; G01; G01F; G01F11/00; G01F11/10; G01F11/12; G01F11/125; B; B67; B67D; B67D1/00; B67D1/0001; F; F04; F04B; F04B43/00; F04B43/12; F04B43/1253
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US453628A
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US867292A
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US902942A
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GB191212535A
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GB103930A
Cited
US1340828A
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US1553859A
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US2113022A
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US2483924A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-08 | 1957-08-10 | 1958-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-08 | 1961-08-10 | 1962-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-08 | 1965-08-10 | 1966-02-09 | $7700.00 | Window Closed / Lapsed |