US2779478A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tapered strainer and assemblies
Assignee: Spraying Systems Co
•
Filing: 1954-05-04
•
Granted: 1957-01-29
•
Expires: 1974-05-04
Abstract
No abstract record available.
Inventors
- 👤 Fred W Wahlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:35
CPC Classifications
B; B21; B21B; B21B45/00; B21B45/04; B21B45/08; B05; B05B; B05B1/00; B05B1/02; B05B1/04; B05B1/042; B05B1/14; B05B15/00; B05B15/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US427447A
Cited
US916340A
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US1286297A
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US1296542A
Cited
US2125445A
Cited
US2284135A
Cited
US2529499A
Cited
US2681829A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-29 | 1960-07-30 | 1961-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-29 | 1964-07-30 | 1965-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-29 | 1968-07-30 | 1969-01-29 | $7700.00 | Window Closed / Lapsed |