US3424439A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for mixing and applying foams
Assignee: Individual
•
Filing: 1967-11-29
•
Granted: 1969-01-28
•
Expires: 1987-11-29
Abstract
No abstract record available.
Inventors
- 👤 Bert Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:44
CPC Classifications
B; B29; B29B; B29B7/00; B29B7/74; B29B7/7438; B01; B01F; B01F25/00; B01F25/40; B01F25/42; B01F25/43; B01F25/431; B01F25/4316; B29B7/7466; B01F25/43197; B01F25/431972
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2724581A
Cited
US2802648A
Cited
US3008808A
Cited
US3045984A
Cited
US3089683A
Cited
US3220801A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-28 | 1972-07-29 | 1973-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-28 | 1976-07-29 | 1977-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-28 | 1980-07-29 | 1981-01-28 | $7700.00 | Window Closed / Lapsed |