US3072995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and device for casting voids
Assignee: GRIFFITH RUBBER MILLS
•
Filing: 1960-07-05
•
Granted: 1963-01-15
•
Expires: 1980-07-05
Abstract
No abstract record available.
Inventors
- 👤 Jarvis C Buxton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:55
CPC Classifications
B; B28; B28B; B28B7/00; B28B7/28; B28B7/30; B28B7/32; Y; Y10; Y10S; Y10S425/00; Y10S425/014
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A DEVICE OF THE CHARACTER DESCRIBED FOR PROVIDING VOIDS IN POURED CEMENTITIOUS MEMBERS COMPRISING A HOLLOW FLUID-TIGHT CONTAINER HAVING FLEXIBLE SURROUNDING WALLS DEFINING THE SIDES THEREOF, AT LEAST TWO ELONGATED TENSION MEMBERS FASTENED TO OPPOSITE SIDES OF THE CONTAINER AND EACH WITH OPPOSITE ENDS EXTENDING FREE FROM OPPOSITE ENDS OF THE CONTAINER, MEANS CONNECTING WITH THE INSIDE OF THE CONTAINER FOR CONTROLLING INFLATION AND DEFLATION OF THE CONTAINER, AND MEANS CONNECTED TO SAID OPPOSITE ENDS OF SAID TENSION MEMBERS FOR TENSIONING THEM EXTERNALLY OF THE CONTAINER.
Claim 2
Independent Claim
86 words
A DEVICE OF THE CHARACTER DESCRIBED FOR PROVIDING VOIDS IN POURED CEMENTITIOUS MEMBERS COMPRISING A HOLLOW FLUID-TIGHT CONTAINER HAVING FLEXIBLE SURROUNDING WALLS DEFINING THE SIDES THEREOF, AT LEAST TWO ELONGATED TENSION MEMBERS FASTENED TO OPPOSITE SIDES OF THE CONTAINER AND EACH WITH OPPOSITE ENDS EXTENDING FREE FROM OPPOSITE ENDS OF THE CONTAINER, MEANS CONNECTING WITH THE INSIDE OF THE CONTAINER FOR CONTROLLING INFLATION AND DEFLATION OF THE CONTAINER, AND MEANS CONNECTED TO SAID OPPOSITE ENDS OF SAID TENSION MEMBERS FOR TENSIONING THEM EXTERNALLY OF 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) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |