US3397773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Special package
Assignee: WR Grace and Co
•
Filing: 1964-12-03
•
Granted: 1968-08-20
•
Expires: 1984-12-03
Abstract
No abstract record available.
Inventors
- 👤 John W Harrison
- 👤 Robert D Lowry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:18
CPC Classifications
B; B65; B65D; B65D75/00; B65D75/002; B65D75/004
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
228 words
A PACKAGE COMPRISING A FIRST FRAME MEMBER DEFINING AN OPEN AREA, SAID FIRST FRAME MEMBER HAVING AN UPPER FACE AND A LOWER FACE, A FIRST SHEET OF HEAT-SHRINKABLE, THERMOPLASTIC FILM POSITIONED AGAINST SAID LOWER FACE AND TIGHTLY DRAWN ACROSS SAID OPEN AREA, THE PERIPHERAL EDGE OF SAID FIRST SHEET DRAWN AROUND THE EDGE OF SAID FIRST FRAME MEMBER AND POSITIONED AGAINST THE UPPER FACE OF SAID FIRST FRAME MEMBER, THE PERIPHERAL EDGE OF SAID FIRST FILM SHEET HAVING A SMALLER PERIMETER THAN THE LARGEST PERIMETER OF SAID FIRST FRAME MEMBER, A SECOND FRAME MEMBER SIMILAR IN SIZE TO SAID FIRST FRAME MEMBER AND DEFINING AN OPEN AREA POSITIONED AGAINST THE UPPER FACE OF SAID FIRST FRAME MEMBER ENCLOSING THE EDGE OF SAID FIRST FILM SHEET BETWEEN SAID FRAME MEMBERS, A SECOND SHEET OF HEAT-SHRINKABLE, THERMOPLASTIC FILM POSITIONED AGAINST SAID SECOND FRAME MEMBER AND TIGHTLY DRAWN ACROSS THE OPEN AREA DEFINED BY SAID SECOND FRAME MEMBER, THE PERIPHERAL EDGE OF SAID SECOND FILM SHEET DRAWN OVER THE EDGES OF SAID SECOND AND FIRST FRAME MEMBERS AND POSITIONED AGAINST THE FILM-COVERED LOWER FACE OF SAID FIRST FRAME MEMBER, THE PERIPHERAL EDGE OF SAID SECOND FILM SHEET HAVING A SMALLER PERIMETER THAN THE LARGEST PERIMETER OF SAID FIRST FRAME MEMBER, AND HAVING AN OBJECT POSITIONED BETWEEN SAID TAUT FIRST AND SECOND FILM SHEETS WITHIN THE AREA DEFINED BY SAID FRAME MEMBERS.
References Cited (Backward Citations)
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US1895236A
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US2501570A
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US2681142A
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US2811246A
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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) | 1971-08-20 | 1972-02-19 | 1972-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-20 | 1976-02-19 | 1976-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-20 | 1980-02-19 | 1980-08-20 | $7700.00 | Window Closed / Lapsed |