US2761741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container
Assignee: ACF Industries Inc
•
Filing: 1951-03-03
•
Granted: 1956-09-04
•
Expires: 1971-03-03
Abstract
No abstract record available.
Inventors
- 👤 Robert A Shields
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:15
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/54; B65D88/548
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
APPARATUS FOR DISCHARGING PULVERULENT OR GRANULAR MATERIAL FROM A SEALED CONTAINER COMPRISING, AN OUTLET FOR DISCHARGED OF MATERIAL FROM THE CONTAINER, NOZZLE MEANS DIRECTED TOWARD SAID OUTLET, MEANS FOR ADMITTING FLUID UNDER PRESSURE TO SAID CONTAINER ADJACENT THE BOTTOM THEREOF, MEANS TO SUPPLY FLUID UNDER SUPER-ATOMPHERIC PRESSURE TO SAID NOZZLE MEANS, AND MEANS TO SELECTIVELY APPLY SUPER-ATMOSPHERIC OR SUB-ATOMOSPHERIC PRESSURE TO THE SPACE ABOVE THE MATERIAL IN THE CONTAINER.
Claim 2
Dependent Claim
69 words
APPARATUS FOR DISCHARGING PULVERULENT OR GRANULAR MATERIAL FROM A SEALED CONTAINER COMPRISING, AN OUTLET FOR DISCHARGED OF MATERIAL FROM THE CONTAINER, NOZZLE MEANS DIRECTED TOWARD SAID OUTLET, MEANS FOR ADMITTING FLUID UNDER PRESSURE TO SAID CONTAINER ADJACENT THE BOTTOM THEREOF, MEANS TO SUPPLY FLUID UNDER SUPER-ATOMPHERIC PRESSURE TO SAID NOZZLE MEANS, AND MEANS TO SELECTIVELY APPLY SUPER-ATMOSPHERIC OR SUB-ATOMOSPHERIC PRESSURE TO THE SPACE ABOVE THE MATERIAL IN THE CONTAINER.
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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) | 1959-09-04 | 1960-03-05 | 1960-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-04 | 1964-03-05 | 1964-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-04 | 1968-03-05 | 1968-09-04 | $7700.00 | Window Closed / Lapsed |