US2415372A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sweeper
Assignee: BF Sturtevant Co
•
Filing: 1945-06-16
•
Granted: 1947-02-04
•
Expires: 1965-06-16
Abstract
No abstract record available.
Inventors
- 👤 Lloyd B Salt
- 👤 Corradino R Zaino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:55
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4013; A47L11/02; A47L11/10; A47L11/14; A47L11/16; A47L11/162; A47L11/4025; A47L11/4036; A47L11/4038; A47L5/00; A47L5/12; A47L5/22; A47L5/24; A47L5/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US435935A
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US1305242A
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US968934A
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US1115301A
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US1260282A
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US1480662A
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US1673333A
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US1718804A
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US1954416A
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GB360193A
Cited
CH157618A
Cited
US2190678A
Cited
US2224202A
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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) | 1950-02-03 | 1950-08-05 | 1951-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-02-03 | 1954-08-05 | 1955-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-02-03 | 1958-08-05 | 1959-02-04 | $7700.00 | Window Closed / Lapsed |