Patent EP0645856A1 successfully refreshed from Google Patents.
US3371904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Form for concrete columns
Assignee: Individual
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Filing: 1965-10-23
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Granted: 1968-03-05
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Expires: 1985-10-23
Abstract
No abstract record available.
Inventors
- 👤 Iii John L Low
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:43
CPC Classifications
E; E04; E04G; E04G13/00; E04G13/02; E04G13/023; E04G13/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
387 words
A FORM FOR POURING A CONCRETE COLUMN COMPRISING FOUR UPWARDLY EXTENDING SUBSTANTIALLY FLAT PANELS, THE PANELS BEING ARRANGED WHEREBY THEY ENCLOSE AN UPWARDLY EXTENDING FOUR SIDED CAVITY FOR RECEIVING UNSET CONCRETE MIX WITH ADJACENT PANELS BEING AT APPROXIMATELY RIGHT ANGLES TO EACH OTHER TO THEREBY PROVIDE FOUR SUBSTANTIALLY 90* CORNERS AT THE EDGES THEREOF, FIRST AND SECOND COLUMN CLAMPS, ONE OF THE CLAMPS BEING RETAINED ON THE OUTER SURFACE OF A FIRST OF SAID CORNERS AND THE OTHER BEING RETAINED ON THE OUTER SURFACE OF A SECOND OF SAID CORNERS, THE FIRST AND SECOND CORNERS BEING OPPOSITELY DISPOSED, EACH OF THE CLAMPS INCLUDING A PAIR OF ELONGATED, SUBSTANTIALLY FLAT TRANSVERSELY EXTENDING PORTIONS, THE TRANSVERSELY EXTENDING PORTIONS BEING SUBSTANTIALLY SHORTER THAN THE WIDTH OF THE PANELS AND LYING IN UPRIGHT INTERSECTING PLANES WHICH FORM AN APPROXIMATELY 90* INTERNAL ANGLE AT THE INTERSECTION, THE INTERAL SURFACES OF THE TRANSVERSELY EXTENDING PORTIONS CONFORMING WITH AND BEING POSITIONED ON THE OUTER SURFACES OF THE SAID OPPOSITELY DISPOSED CORNERS WHEREBY ONE HORIZONTALLY EXTENDING PORTION IS ON AN EDGE PORTION OF EACH OF THE FOUR PANELS, MEANS FOR SECURELY ATTACHING THE HORIZONTALLY EXTENDING PORTIONS TO THE PANELS WHEREBY THE PANELS FORMING THE FIRST AND SECOND CORNERS ARE RETAINED AT RIGHT ANGLES TO EACH OTHER AND THE FIRST AND SECOND CORNERS ARE MAINTAINED SUBSTANTIALLY SQUARE, A PAIR OF SPACED SUBSTANTIALLY FLAT REINFORCING PORTIONS EXTENDING OUTWARDLY FROM THE EXTERNAL SURFACES OF THE PAIR OF HORIZONTALLY EXTENDING PORTIONS OF EACH CLAMP, THE PAIR OF SPACED REINFORCING PORTIONS EXTENDING LONGITUDINALLY ALONG AND EMBRACING THE PAIR OF HORIZONTALLY EXTENDING PORTIONS AND FORMING AN APPROXIMATELY 90* ANGLE THEREWITH, THE SPACED REINFORCING PORTIONS HAVING ALIGNED OPENINGS THEREIN ALONGSIDE EACH OF THE HORIZONTALLY EXTENDING PORTIONS, MEANS FOR RETAINING THE EDGES OF THE PANELS FORMING THE THIRD AND FOURTH CORNERS AT RIGHT ANGLES TO EACH OTHER AND THEREBY MAINTAINING THE THIRD AND FOURTH CORNERS SUBSTANTIALLY SQUARE, AND MEANS FOR CONNECTING THE RETAINING MEANS FOR THE EDGES OF THE PANELS FORMING THE THIRD AND FOURTH CORNERS TO EACH OF THE COLUMN CLAMPS, THE CONNECTING MEANS INCLUDING ELONGATED MEMBERS WHICH ARE INSERTED BETWEEN THE SPACED REINFORCING MEMBERS, THE SAID ELONGATED MEMBERS HAVING OPENINGS THEREIN ALIGNED WITH THE OPENINGS IN THE SPACED REINFORCING MEMBERS, AND FASTENING MEANS INSERTED THROUGH THE ALIGNED OPENINGS IN THE SPACED REINFORCING MEMBERS AND THE OPENINGS IN THE SAID ELONGATED MEMBERS.
Claim 2
Dependent Claim
387 words
A FORM FOR POURING A CONCRETE COLUMN COMPRISING FOUR UPWARDLY EXTENDING SUBSTANTIALLY FLAT PANELS, THE PANELS BEING ARRANGED WHEREBY THEY ENCLOSE AN UPWARDLY EXTENDING FOUR SIDED CAVITY FOR RECEIVING UNSET CONCRETE MIX WITH ADJACENT PANELS BEING AT APPROXIMATELY RIGHT ANGLES TO EACH OTHER TO THEREBY PROVIDE FOUR SUBSTANTIALLY 90* CORNERS AT THE EDGES THEREOF, FIRST AND SECOND COLUMN CLAMPS, ONE OF THE CLAMPS BEING RETAINED ON THE OUTER SURFACE OF A FIRST OF SAID CORNERS AND THE OTHER BEING RETAINED ON THE OUTER SURFACE OF A SECOND OF SAID CORNERS, THE FIRST AND SECOND CORNERS BEING OPPOSITELY DISPOSED, EACH OF THE CLAMPS INCLUDING A PAIR OF ELONGATED, SUBSTANTIALLY FLAT TRANSVERSELY EXTENDING PORTIONS, THE TRANSVERSELY EXTENDING PORTIONS BEING SUBSTANTIALLY SHORTER THAN THE WIDTH OF THE PANELS AND LYING IN UPRIGHT INTERSECTING PLANES WHICH FORM AN APPROXIMATELY 90* INTERNAL ANGLE AT THE INTERSECTION, THE INTERAL SURFACES OF THE TRANSVERSELY EXTENDING PORTIONS CONFORMING WITH AND BEING POSITIONED ON THE OUTER SURFACES OF THE SAID OPPOSITELY DISPOSED CORNERS WHEREBY ONE HORIZONTALLY EXTENDING PORTION IS ON AN EDGE PORTION OF EACH OF THE FOUR PANELS, MEANS FOR SECURELY ATTACHING THE HORIZONTALLY EXTENDING PORTIONS TO THE PANELS WHEREBY THE PANELS FORMING THE FIRST AND SECOND CORNERS ARE RETAINED AT RIGHT ANGLES TO EACH OTHER AND THE FIRST AND SECOND CORNERS ARE MAINTAINED SUBSTANTIALLY SQUARE, A PAIR OF SPACED SUBSTANTIALLY FLAT REINFORCING PORTIONS EXTENDING OUTWARDLY FROM THE EXTERNAL SURFACES OF THE PAIR OF HORIZONTALLY EXTENDING PORTIONS OF EACH CLAMP, THE PAIR OF SPACED REINFORCING PORTIONS EXTENDING LONGITUDINALLY ALONG AND EMBRACING THE PAIR OF HORIZONTALLY EXTENDING PORTIONS AND FORMING AN APPROXIMATELY 90* ANGLE THEREWITH, THE SPACED REINFORCING PORTIONS HAVING ALIGNED OPENINGS THEREIN ALONGSIDE EACH OF THE HORIZONTALLY EXTENDING PORTIONS, MEANS FOR RETAINING THE EDGES OF THE PANELS FORMING THE THIRD AND FOURTH CORNERS AT RIGHT ANGLES TO EACH OTHER AND THEREBY MAINTAINING THE THIRD AND FOURTH CORNERS SUBSTANTIALLY SQUARE, AND MEANS FOR CONNECTING THE RETAINING MEANS FOR THE EDGES OF THE PANELS FORMING THE THIRD AND FOURTH CORNERS TO EACH OF THE COLUMN CLAMPS, THE CONNECTING MEANS INCLUDING ELONGATED MEMBERS WHICH ARE INSERTED BETWEEN THE SPACED REINFORCING MEMBERS, THE SAID ELONGATED MEMBERS HAVING OPENINGS THEREIN ALIGNED WITH THE OPENINGS IN THE SPACED REINFORCING MEMBERS, AND FASTENING MEANS INSERTED THROUGH THE ALIGNED OPENINGS IN THE SPACED REINFORCING MEMBERS AND THE OPENINGS IN THE SAID ELONGATED MEMBERS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-05 | 1971-09-04 | 1972-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-05 | 1975-09-04 | 1976-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-05 | 1979-09-04 | 1980-03-05 | $7700.00 | Window Closed / Lapsed |