US3248812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collector and hoist for aggregates
Assignee: Individual
•
Filing: 1963-04-22
•
Granted: 1966-05-03
•
Expires: 1983-04-22
Abstract
No abstract record available.
Inventors
- 👤 Gardner Catherine Burkholder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:10
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/88; E02F3/8858; E02F3/8875; E02F3/90; E02F3/92; E02F9/00; E02F9/26; E21; E21C; E21C50/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
90 words
IN A COLLECTOR AND HOIST FOR AGGREGATES: A SUPPORTING FRAMEWORK ADAPTED TO REST UPON A SURFACE AREA; UPRIGHT BLADE MEANS MOUNTED ON SAID FRAMEWORK WITH THE LOWER EDGES THEREOF ENGAGING THE SURFACE SUPPORTING THE FRAMEWORK, SAID BLADE MEANS HAVING A REARWARDLY CONVERGING CONFIGURATION; A CONVEYING CONDUIT MOUNTED ON SAID FRAMEWORK PROVIDED WITH A SIDE OPENING FORMED THEREON AND LOCATED ADJACENT SAID BLADE MEANS AT A POSITION WHEREIN MATERIALS ENGAGED BY SAID BLADE MEANS WILL BE CROWDED INTO SAID OPENING IN RESPONSE TO MOTION OF SAID FRAMEWORK RELATIVE TO SAID SURFACE;
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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) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |