US3428164A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conveyor belts
Assignee: Individual
•
Filing: 1967-04-26
•
Granted: 1969-02-18
•
Expires: 1987-04-26
Abstract
No abstract record available.
Inventors
- 👤 Alan T Lovegreen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:58
CPC Classifications
E; E02; E02F; E02F7/00; B; B01; B01D; B01D33/00; B01D33/04; B01D33/056; B65; B65G; B65G15/00; B65G15/30; B65G15/32; B65G15/42; B01D2201/00; B01D2201/18; B01D2201/184; B65G2201/00; B65G2201/04
Claims Analysis
Total Claims: 0
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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) | 1972-02-18 | 1972-08-19 | 1973-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-18 | 1976-08-19 | 1977-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-18 | 1980-08-19 | 1981-02-18 | $7700.00 | Window Closed / Lapsed |