Patent US3225903A successfully refreshed from Google Patents.
US3225903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Encased belt conveyors
Assignee: Individual
•
Filing: 1963-02-06
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Granted: 1965-12-28
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Expires: 1983-02-06
Abstract
No abstract record available.
Inventors
- 👤 Piemout Georges
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:32
CPC Classifications
B; B65; B65G; B65G15/00; B65G15/22; B65G15/30; B65G15/32; B65G15/42; B65G19/00; B65G19/14; B65G19/16; B65G2201/00; B65G2201/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
IN AN ENCASED BELT CONVEYOR FOR TRANSPORTATION OF BLUK GRANULAR MATERIALS IN A PLANE WHICH IS INCLINED TO THE HORIZONTAL, IN COMBINATION AN ENDLESS BELT HAVING A WORKING FACE, A PLURALITY OF SPACED ENDLESS SINUOUS RETAINING WALLS UPSTANDING FROM SAID BELT WORKING FACE, A CLOSED CASING HOUSING SAID BELT WITH SAID WALLS EXTENDING ACROSS THE INTERIOR OF SAID CASING, MEANS FOR SUPPORTING
Claim 2
Dependent Claim
62 words
IN AN ENCASED BELT CONVEYOR FOR TRANSPORTATION OF BLUK GRANULAR MATERIALS IN A PLANE WHICH IS INCLINED TO THE HORIZONTAL, IN COMBINATION AN ENDLESS BELT HAVING A WORKING FACE, A PLURALITY OF SPACED ENDLESS SINUOUS RETAINING WALLS UPSTANDING FROM SAID BELT WORKING FACE, A CLOSED CASING HOUSING SAID BELT WITH SAID WALLS EXTENDING ACROSS THE INTERIOR OF SAID CASING, MEANS FOR SUPPORTING
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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) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |