Patent US2805174A successfully refreshed from Google Patents.
Patent US2319979A successfully refreshed from Google Patents.
US2319979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conveyer
Assignee: Lummus Technology LLC
•
Filing: 1942-04-29
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Granted: 1943-05-25
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Expires: 1962-04-29
Abstract
No abstract record available.
Inventors
- 👤 Raymond R Collins
- 👤 John A Gibb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:59
CPC Classifications
B; B65; B65G; B65G17/00; B65G17/30; B65G17/38; F; F16; F16G; F16G13/00; F16G13/02; F16G13/06; B65G2201/00; B65G2201/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1946-05-24 | 1946-11-23 | 1947-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-05-24 | 1950-11-23 | 1951-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-05-24 | 1954-11-23 | 1955-05-25 | $7700.00 | Window Closed / Lapsed |