US3352529A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mold apparatus for hollow building elements
Assignee: Individual
•
Filing: 1965-10-22
•
Granted: 1967-11-14
•
Expires: 1985-10-22
Abstract
No abstract record available.
Inventors
- 👤 Wilson E Haas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:42
CPC Classifications
B; B28; B28B; B28B7/00; B28B7/28; B28B7/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A DEVICE FOR CASTING HOLLOW CORE CONCRETE PANELS COMPRISING A PAIR OF LONGITUDINAL FORM MEANS, A FIRST OF SAID FORM MEANS INCLUDING A PLURALITY OF TAPERED PROJECTIONS EXTENDING THEREFROM, AND A SECOND OF SAID FORM MEANS HAVING A PLURALITY OF ELONGATED APERTURES THEREIN, AND COLLAPSIBLE HOLLOW MOLD MEANS INSERTED IN SAID APERTURES, EACH OF SAID MOLD MEANS INCLUDING TAPERED MOLD EXTENSIONS PROTRUDING INTO SAID PROJECTIONS OF SAID FIRST FORM MEANS AND SUBSTANTIALLY FORMING A SEAL THEREWITH FOR PREVENTING SEEPAGE OF CONRETE INTO SAID FIRST MEANS AND SAID MOLD MEANS.
Claim 2
Independent Claim
89 words
A DEVICE FOR CASTING HOLLOW CORE CONCRETE PANELS COMPRISING A PAIR OF LONGITUDINAL FORM MEANS, A FIRST OF SAID FORM MEANS INCLUDING A PLURALITY OF TAPERED PROJECTIONS EXTENDING THEREFROM, AND A SECOND OF SAID FORM MEANS HAVING A PLURALITY OF ELONGATED APERTURES THEREIN, AND COLLAPSIBLE HOLLOW MOLD MEANS INSERTED IN SAID APERTURES, EACH OF SAID MOLD MEANS INCLUDING TAPERED MOLD EXTENSIONS PROTRUDING INTO SAID PROJECTIONS OF SAID FIRST FORM MEANS AND SUBSTANTIALLY FORMING A SEAL THEREWITH FOR PREVENTING SEEPAGE OF CONRETE INTO SAID FIRST MEANS AND SAID MOLD MEANS.
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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) | 1970-11-13 | 1971-05-15 | 1971-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-13 | 1975-05-15 | 1975-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-13 | 1979-05-15 | 1979-11-14 | $7700.00 | Window Closed / Lapsed |