US2941657A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chain conveyor
Assignee: NEWCOMB DE VILBISS Co
•
Filing: 1958-03-17
•
Granted: 1960-06-21
•
Expires: 1978-03-17
Abstract
No abstract record available.
Inventors
- 👤 Avon L Newcomb
- 👤 Warren L Hockert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:44
CPC Classifications
B; B65; B65G; B65G17/00; B65G17/30; B65G17/38; B65G17/385; B65G2201/00; B65G2201/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB639244A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |