US2979187A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for conveying material
Assignee: Goodrich Corp
•
Filing: 1958-06-20
•
Granted: 1961-04-11
•
Expires: 1978-06-20
Abstract
No abstract record available.
Inventors
- 👤 Lester E Erickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:26
CPC Classifications
B; B65; B65G; B65G45/00; B65G15/00; B65G15/04; B65G45/10; B65G45/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US476787A
Cited
US496496A
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US1863562A
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FR832032A
Cited
US2310819A
Cited
US2293977A
Cited
US2669339A
Cited
US2580229A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-10 | 1964-10-10 | 1965-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-10 | 1968-10-10 | 1969-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-10 | 1972-10-10 | 1973-04-11 | $7700.00 | Window Closed / Lapsed |