US3133387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming a multiple package
Assignee: WR Grace and Co
•
Filing: 1961-05-22
•
Granted: 1964-05-19
•
Expires: 1981-05-22
Abstract
No abstract record available.
Inventors
- 👤 John W Harrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:53
CPC Classifications
B; B65; B65B; B65B53/00; B65B53/02; B65B17/00; B65B17/02; B65B17/025; B65D; B65D71/00; B65D71/50; B65D71/508
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
METHOD OF FORMING A MULTIPLE PACKAGE OF TUBULAR CONTAINERS, EACH HAVING AN OUTWARDLY EXTENDING PROJECTING EDGE ABOUT ITS RESPECTIVE TOP AND BOTTOM RIM, WHICH COMPRISES: (A) PLACING A FIRST SHEET OF HEAT SHRINKABLE, THERMOPLASTIC FILM ON A SUBSTANTIALLY FLAT SUPPORT; (B) PLACING A PLURALITY OF SAID TUBULAR CONTAINERS IN UPRIGHT POSITION UPON SAID FIRST SHEET; (C) DRAPING A SECOND SHEET OF HEAT SHRINKABLE THERMOPLASTIC FILM OVER THE OTHER END OF SAID UPRIGHT CONTAINERS AND MAINTAINING THE PORTION OF SAID SECOND SHEET IN CONTACT WITH SAID END IN FIXED RELATIONSHIP TO SAID END; (D) SUBSTANTIALLY SIMULTANEOUSLY HEATING THOSE PORTIONS OF THE TWO FILM SHEETS THAT ARE NOT DIRECTLY ABOVE OR BELOW SAID CONTAINERS TO TEMPERATURES SUFFICIENT TO SHRINK SAID PORTIONS; (E) CONTINUING SAID HEATING UNTIL MARGINAL PORTIONS OF BOTH FILM SHEETS HAVE SHRUNK AGAINST THE SIDES OF THE CONTAINERS, EACH SHEET TIGHTLY GRIPPING THE RIMS OF SAID CONTAINERS AT THE END WHICH IT COVERS AND DRAWING THE RIM OF EACH CONTAINER INTO THE TANGENTIAL CONTACT WITH THE RIM OF AT LEAST ONE OTHER CONTAINER,
Claim 2
Dependent Claim
173 words
METHOD OF FORMING A MULTIPLE PACKAGE OF TUBULAR CONTAINERS, EACH HAVING AN OUTWARDLY EXTENDING PROJECTING EDGE ABOUT ITS RESPECTIVE TOP AND BOTTOM RIM, WHICH COMPRISES: (A) PLACING A FIRST SHEET OF HEAT SHRINKABLE, THERMOPLASTIC FILM ON A SUBSTANTIALLY FLAT SUPPORT; (B) PLACING A PLURALITY OF SAID TUBULAR CONTAINERS IN UPRIGHT POSITION UPON SAID FIRST SHEET; (C) DRAPING A SECOND SHEET OF HEAT SHRINKABLE THERMOPLASTIC FILM OVER THE OTHER END OF SAID UPRIGHT CONTAINERS AND MAINTAINING THE PORTION OF SAID SECOND SHEET IN CONTACT WITH SAID END IN FIXED RELATIONSHIP TO SAID END; (D) SUBSTANTIALLY SIMULTANEOUSLY HEATING THOSE PORTIONS OF THE TWO FILM SHEETS THAT ARE NOT DIRECTLY ABOVE OR BELOW SAID CONTAINERS TO TEMPERATURES SUFFICIENT TO SHRINK SAID PORTIONS; (E) CONTINUING SAID HEATING UNTIL MARGINAL PORTIONS OF BOTH FILM SHEETS HAVE SHRUNK AGAINST THE SIDES OF THE CONTAINERS, EACH SHEET TIGHTLY GRIPPING THE RIMS OF SAID CONTAINERS AT THE END WHICH IT COVERS AND DRAWING THE RIM OF EACH CONTAINER INTO THE TANGENTIAL CONTACT WITH THE RIM OF AT LEAST ONE OTHER 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) | 1967-05-19 | 1967-11-18 | 1968-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-19 | 1971-11-18 | 1972-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-19 | 1975-11-18 | 1976-05-19 | $7700.00 | Window Closed / Lapsed |