US2668624A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Strainer attachment
Assignee: Spraying Systems Co
•
Filing: 1949-07-14
•
Granted: 1954-02-09
•
Expires: 1969-07-14
Abstract
No abstract record available.
Inventors
- 👤 Fred W Wahlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:22
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/11; B01D29/13; B01D29/15; B01D29/62; B01D29/64; B01D29/6469; B01D29/6484; B01D29/70; B01D2201/00; B01D2201/04; B01D2201/0407; B01D2201/0461
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US217126A
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US231066A
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US679131A
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GB190308808A
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US900104A
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US1090387A
Cited
US1116234A
Cited
GB169591A
Cited
FR658237A
Cited
US1928049A
Cited
FR759090A
Cited
US2186440A
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 |