Patent US2831215A successfully refreshed from Google Patents.
US2831215A
Expired / Lapsed
US
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Process for producing shoulder strips for belt conveyors
Assignee: Individual
•
Filing: 1954-06-18
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Granted: 1958-04-22
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Expires: 1974-06-18
Abstract
No abstract record available.
Inventors
- 👤 Piemont Georges
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:10
CPC Classifications
B; B29; B29D; B29D29/00; B29D29/06; B29C; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/13; B29C66/131; B29C66/40; B29C66/47; B29C66/472; B29C66/4722; B29C66/474; B29C65/00; B29C65/02; B65; B65G; B65G2201/00; B65G2201/04; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1089
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-21 | 1961-10-21 | 1962-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-21 | 1965-10-21 | 1966-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-21 | 1969-10-21 | 1970-04-22 | $7700.00 | Window Closed / Lapsed |