Patent US3480987A successfully refreshed from Google Patents.
US3480987A
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US
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Cleaner assembly
Assignee: White Consolidated Industries Inc
•
Filing: 1967-11-13
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Granted: 1969-12-02
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Expires: 1987-11-13
Abstract
No abstract record available.
Inventors
- 👤 Harold W Schaefer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:50
CPC Classifications
C; C03; C03B; C03B23/00; C03B23/02; A; A47; A47L; A47L5/00; A47L5/12; A47L5/22; A47L5/36; A47L5/362; A47L9/00; A47L9/0009; A47L9/0018; A47L9/0036; C03C; C03C19/00; Y; Y10; Y10S; Y10S55/00; Y10S55/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2734594A
Cited
US3344588A
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US2233167A
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US2731103A
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US2716465A
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US2959804A
Cited
US2918692A
Cited
US2997728A
Cited
US3132932A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-01 | 1973-06-02 | 1973-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-01 | 1977-06-02 | 1977-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-01 | 1981-06-02 | 1981-12-02 | $7700.00 | Window Closed / Lapsed |