US3428985A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foam generator for rug cleaning machine
Assignee: Certified Chem & Equipment Co
•
Filing: 1967-02-28
•
Granted: 1969-02-25
•
Expires: 1987-02-28
Abstract
No abstract record available.
Inventors
- 👤 Reed Lake Boyd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:15
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/408; A47L11/4088; A47L11/32; A47L11/325; A47L11/4002; A47L11/4008; A47L11/4011; A47L11/4036; A47L11/4063; A47L11/4069; A47L11/4083; Y; Y10; Y10S; Y10S261/00; Y10S261/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1479233A
Cited
US2334914A
Cited
US2715045A
Cited
US2960710A
Cited
US2796297A
Cited
US3204280A
Cited
US3258803A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-25 | 1972-08-26 | 1973-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-25 | 1976-08-26 | 1977-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-25 | 1980-08-26 | 1981-02-25 | $7700.00 | Window Closed / Lapsed |