US3404659A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for coating articles with finely divided particles, with conveyors
Assignee: SAM STEIN ASSOCIATES Inc
•
Filing: 1967-07-31
•
Granted: 1968-10-08
•
Expires: 1987-07-31
Abstract
No abstract record available.
Inventors
- 👤 Donald E Croston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:00
CPC Classifications
A; A23; A23G; A23G3/00; A23G3/02; A23G3/20; A23G3/2076
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2731942A
Cited
US1558580A
Cited
US2300396A
Cited
US2583608A
Cited
US2625905A
Cited
US2782754A
Cited
US3041738A
Cited
US3138167A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-08 | 1972-04-08 | 1972-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-08 | 1976-04-08 | 1976-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-08 | 1980-04-08 | 1980-10-08 | $7700.00 | Window Closed / Lapsed |