Patent US3921368A successfully refreshed from Google Patents.
US3921368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of adhesion of surfaces especially as applied to corrugated paper boards
Assignee: Individual
•
Filing: 1974-04-29
•
Granted: 1975-11-25
•
Expires: 1994-04-29
Abstract
Abstract A method by which two corrugated paper surfaces are secured together by adhesion during the setting of a permanent glue comprising the freezing of a layer of water introduced between the paper surfaces after a layer of glue has been applied. The time calculated for the water to remain frozen is to be longer than the time required for an inexpensive glue to solidify.
Inventors
- 👤 James A Hanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:23
CPC Classifications
B; B65; B65B; B65B51/00; B65B51/02
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
169 words
A METHOD OF SECURING THE FLAPS OF A CONVENTIONAL SHIPPING CASE HAVING A FRONT FLAP, A BACK FLAP, AND TWO SIDE FLAPS EACH FLAP HAVING AN INNER SURFACE WHICH FACES INTO THE CASE WHEN THE CASE IS CLOSED AND AN OUTER SURFACE WHICH FACES OUTWARD OF THE CASE WHEN THE CASE IS CLOSED, COMPRISING: A. FOLDING THE FRONT AND BACK FLAPS INWARD OVER THE CASE; B. APPLYING A LAYER OF GLUE TO THE CENTER AREA OF THE INNER FACE OF EACH SIDE FLAP LEAVING AN UNGLUED STRIP ALONG THE UNATTACHED EDGE OF EACH SIDE FLAP, C. FOLDING THE SIDE FLAPS INWARD OVER THE FRONT AND BACK FLAPS OVER THE CASE; D. SQUIRTING A THIN LAYER OF COLD WATER BETWEEN THE EDGES OF THE FLAPS ALONG THE JUNCTION OF THE UNGLUED STRIPS OF THE SIDE FLAPS WITH THE UPPER FACES OF THE FRONT AND BACK FLAPS; E. FREEZING THE LAYER OF WATER TO ICE; AND F. REMOVING THE ICE BY MELTING THE ICE AND EVAPORATING THE WATER AT ROOM TEMPERATURE.
Claim 2
Independent Claim
169 words
A METHOD OF SECURING THE FLAPS OF A CONVENTIONAL SHIPPING CASE HAVING A FRONT FLAP, A BACK FLAP, AND TWO SIDE FLAPS EACH FLAP HAVING AN INNER SURFACE WHICH FACES INTO THE CASE WHEN THE CASE IS CLOSED AND AN OUTER SURFACE WHICH FACES OUTWARD OF THE CASE WHEN THE CASE IS CLOSED, COMPRISING: A. FOLDING THE FRONT AND BACK FLAPS INWARD OVER THE CASE; B. APPLYING A LAYER OF GLUE TO THE CENTER AREA OF THE INNER FACE OF EACH SIDE FLAP LEAVING AN UNGLUED STRIP ALONG THE UNATTACHED EDGE OF EACH SIDE FLAP, C. FOLDING THE SIDE FLAPS INWARD OVER THE FRONT AND BACK FLAPS OVER THE CASE; D. SQUIRTING A THIN LAYER OF COLD WATER BETWEEN THE EDGES OF THE FLAPS ALONG THE JUNCTION OF THE UNGLUED STRIPS OF THE SIDE FLAPS WITH THE UPPER FACES OF THE FRONT AND BACK FLAPS; E. FREEZING THE LAYER OF WATER TO ICE; AND F. REMOVING THE ICE BY MELTING THE ICE AND EVAPORATING THE WATER AT ROOM TEMPERATURE.
Claim 3
Dependent Claim
46 words
A method of securing the flaps of a conventional shipping case as set out in claim 1 wherein the layer of water is frozen by directing at the layer of water a stream of air cooled to a predetermined temperature below the freezing temperature of water.
References Cited (Backward Citations)
US1716094A
Cited
US1543843A
Cited
US1951474A
Cited
US2151653A
Cited
US2266054A
Cited
US2819594A
Cited
US3015198A
Cited
US3020691A
Cited
US3145518A
Cited
US3236026A
Cited
US3329116A
Cited
US3411267A
Cited
US3767495A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-24 | 1979-05-26 | 1979-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-24 | 1983-05-26 | 1983-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-24 | 1987-05-26 | 1987-11-25 | $7700.00 | Window Closed / Lapsed |