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US2649205A
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Assignee: Quinn Products Inc
•
Filing: 1948-04-13
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Granted: 1953-08-18
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Expires: 1968-04-13
Abstract
No abstract record available.
Inventors
- 👤 David H Quinn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:50
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/11; B01D29/31; B01D29/33; C; C02; C02F; C02F9/00; C02F9/20; B01D29/88; B01D29/90; B01D35/00; B01D35/26; C02F1/00; C02F1/001; C02F1/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US384306A
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US1469026A
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US691706A
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US680902A
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US692377A
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GB190226857A
Cited
GB190827089A
Cited
US1045096A
Cited
US1800066A
Cited
US2249681A
Cited
US2350378A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-17 | 1957-02-16 | 1957-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-17 | 1961-02-16 | 1961-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-17 | 1965-02-16 | 1965-08-18 | $7700.00 | Window Closed / Lapsed |