US3079986A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grain door
Assignee: International Paper Co
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Filing: 1959-07-29
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Granted: 1963-03-05
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Expires: 1979-07-29
Abstract
No abstract record available.
Inventors
- 👤 Michael J Ford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:01
CPC Classifications
B; B61; B61D; B61D19/00; B61D19/001; B61D19/002; B60; B60P; B60P1/00; B60P1/003
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
171 words
IN COMBINATION WITH A FREIGHT VEHICLE HAVING A DOORWAY DEFINED BY SPACED-APART, VERTICALLY-EXTENDING FRAME MEMBERS, A PLURALITY OF IDENTICALLY DIMENSIONED, FLATFACED, RECTANGULAR PANELS, EACH OF SAID PANELS HAVING A LONGER EDGE DISPOSED HORIZONTALLY TO POSITION SAID PANELS ACROSS SAID DOORWAY, EACH OF SAID PANELS HAVING SHORTER EDGES DISPOSED VERTICALLY OF SAID FRAME MEMBERS, SAID PANELS BEING VERTICALLY SUPERPOSED TO FORM A TEMPORARY DOOR FOR SAID DOORWAY WITH SAID SHORTER EDGES BEING ALIGNED TO DEFINE THE VERTICAL SIDES OF SAID DOOR, EACH PANEL COMPRISING EXTERNAL LAYERS OF FIBROUS MATERIAL ENCLOSING INTERMEDIATE METAL REINFORCING MEANS, NAILS EXTENDING THROUGH SAID LAYERS AND REINFORCING MEANS SECURING SAID PANELS TO SAID FRAME MEMBERS, AND A FLEXIBLE FIBROUS SHEET OVERLAPPING SAID DOOR AT THE VERTICAL SIDES THEREOF, MEANS SECURING SAID SHEET IN THE OVERLAPPING PORTIONS THEREOF TO SAID VERHICLE, SAID SHEET HAVING A DIMENSION PARALLEL TO SAID VERTICAL SIDES GREATER THAN SAID VERTICAL SIDES TO PROVIDE A FLOOR FLAP PORTION, SAID NAILS SECURING SAID PANELS TO SAID FRAME MEMBERS INDEPENDENTLY OF SECURING SAID SHEET TO SAID VEHICLE.
Claim 2
Dependent Claim
171 words
IN COMBINATION WITH A FREIGHT VEHICLE HAVING A DOORWAY DEFINED BY SPACED-APART, VERTICALLY-EXTENDING FRAME MEMBERS, A PLURALITY OF IDENTICALLY DIMENSIONED, FLATFACED, RECTANGULAR PANELS, EACH OF SAID PANELS HAVING A LONGER EDGE DISPOSED HORIZONTALLY TO POSITION SAID PANELS ACROSS SAID DOORWAY, EACH OF SAID PANELS HAVING SHORTER EDGES DISPOSED VERTICALLY OF SAID FRAME MEMBERS, SAID PANELS BEING VERTICALLY SUPERPOSED TO FORM A TEMPORARY DOOR FOR SAID DOORWAY WITH SAID SHORTER EDGES BEING ALIGNED TO DEFINE THE VERTICAL SIDES OF SAID DOOR, EACH PANEL COMPRISING EXTERNAL LAYERS OF FIBROUS MATERIAL ENCLOSING INTERMEDIATE METAL REINFORCING MEANS, NAILS EXTENDING THROUGH SAID LAYERS AND REINFORCING MEANS SECURING SAID PANELS TO SAID FRAME MEMBERS, AND A FLEXIBLE FIBROUS SHEET OVERLAPPING SAID DOOR AT THE VERTICAL SIDES THEREOF, MEANS SECURING SAID SHEET IN THE OVERLAPPING PORTIONS THEREOF TO SAID VERHICLE, SAID SHEET HAVING A DIMENSION PARALLEL TO SAID VERTICAL SIDES GREATER THAN SAID VERTICAL SIDES TO PROVIDE A FLOOR FLAP PORTION, SAID NAILS SECURING SAID PANELS TO SAID FRAME MEMBERS INDEPENDENTLY OF SECURING SAID SHEET TO SAID VEHICLE.
Claim 3
Dependent Claim
90 words
AN ARTICLE OF MANUFACTURE ADAPTED TO PROVIDE A TEMPORARY CLOSURE FOR THE DOORWAY OF A FREIGHT VEHICLE, COMPRISING A PLURALITY OF IDENTICALLY DIMENSIONED, FLAT FACED, RECTANGULAR PANELS ARRANGED IN ALIGNED RELATION TO FORM A SIX-SIDED STACK, EACH OF SAID PANELS COMPRISING EXTERNAL LAYERS OF FIBROUS MATERIAL ENCLOSING METAL REINFORCING MEANS, A PAPER WRAPPER ABOUT SAID STACK ENCLOSING ALL OF THE SIDES THEREOF, SAID WRAPPER BEING DIMENSIONED TO OVERLAP SAID PANELS WHEN THE SAME ARE ARRANGED IN COPLANAR ABUTTING FASHION TO FORM A DOOR CLOSURE, AND STRAP MEANS ABOUT SAID WRAPPER.
Claim 4
Dependent Claim
90 words
AN ARTICLE OF MANUFACTURE ADAPTED TO PROVIDE A TEMPORARY CLOSURE FOR THE DOORWAY OF A FREIGHT VEHICLE, COMPRISING A PLURALITY OF IDENTICALLY DIMENSIONED, FLAT FACED, RECTANGULAR PANELS ARRANGED IN ALIGNED RELATION TO FORM A SIX-SIDED STACK, EACH OF SAID PANELS COMPRISING EXTERNAL LAYERS OF FIBROUS MATERIAL ENCLOSING METAL REINFORCING MEANS, A PAPER WRAPPER ABOUT SAID STACK ENCLOSING ALL OF THE SIDES THEREOF, SAID WRAPPER BEING DIMENSIONED TO OVERLAP SAID PANELS WHEN THE SAME ARE ARRANGED IN COPLANAR ABUTTING FASHION TO FORM A DOOR CLOSURE, AND STRAP MEANS ABOUT SAID WRAPPER.
Claim 5
Dependent Claim
108 words
IN A METHOD OF CLOSING A VEHICLE DOORWAY OPENING DEFINED BY VERTICALLY-EXTENDING FRAME MEMBERS, THE STEPS OF PROVIDING AT LEAST A PAIR OF FLAT DOOR SECTIONS WRAPPED WITH A FIBROUS WRAPPER, EACH SECTION COMPRISING FIBROUS LAYERS WITH METAL REINFORCING MEANS THEREBETWEEN, SAID WRAPPER HAVING AN AREA WHEN ARRANGED IN PLANAR FASHION GREATER THAN THE COMPOSITE AREA OF SAID SECTIONS, UNWRAPPING SAID SECTIONS AND SECURING THEM IN VERTICAL SUPERPOSED RELATION ON SAID FRAME MEMBERS TO DEFINE A CLOSURE HAVING UPPER AND LOWER HORIZONTAL SIDES AND A PAIR OF VERTICAL SIDES, AND SECURING SAID WRAPPER TO SAID VEHICLE IN OVERLAPPING RELATION WITH THE SAID CLOSURE LOWER HORIZONTAL AND VERTICAL SIDES.
Claim 6
Dependent Claim
108 words
IN A METHOD OF CLOSING A VEHICLE DOORWAY OPENING DEFINED BY VERTICALLY-EXTENDING FRAME MEMBERS, THE STEPS OF PROVIDING AT LEAST A PAIR OF FLAT DOOR SECTIONS WRAPPED WITH A FIBROUS WRAPPER, EACH SECTION COMPRISING FIBROUS LAYERS WITH METAL REINFORCING MEANS THEREBETWEEN, SAID WRAPPER HAVING AN AREA WHEN ARRANGED IN PLANAR FASHION GREATER THAN THE COMPOSITE AREA OF SAID SECTIONS, UNWRAPPING SAID SECTIONS AND SECURING THEM IN VERTICAL SUPERPOSED RELATION ON SAID FRAME MEMBERS TO DEFINE A CLOSURE HAVING UPPER AND LOWER HORIZONTAL SIDES AND A PAIR OF VERTICAL SIDES, AND SECURING SAID WRAPPER TO SAID VEHICLE IN OVERLAPPING RELATION WITH THE SAID CLOSURE LOWER HORIZONTAL AND VERTICAL SIDES.
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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) | 1966-03-04 | 1966-09-03 | 1967-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-04 | 1970-09-03 | 1971-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-04 | 1974-09-03 | 1975-03-05 | $7700.00 | Window Closed / Lapsed |