Patent US3229814A successfully refreshed from Google Patents.
US3229814A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Package having cushion separators
Assignee: RALPH J SMALLING
•
Filing: 1961-12-12
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Granted: 1966-01-18
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Expires: 1981-12-12
Abstract
No abstract record available.
Inventors
- 👤 John E Cowman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:38
CPC Classifications
B; B65; B65D; B65D85/00; B65D85/30; B65D85/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A SANDWICH COMPRISING A SHEET AND FILM, SAID SHEET BEING A CUT SHEET OF EXPANDED POLYSTRENE BEADS BONDED TOGETHER, SAID FLIM BEING BONDED TO ONE FACE OF THE SHEET, SAID FILM HAVING A TENSILE STRENGTH AT LEAST TEN TIMES GREATER THAN THE BONDING STRENGTH BETWEEN THE BEADS, AND SAID SANDWICH BEING FLEXIBLE AND HAVING GREATER TEARING STRENGTH AND FOLDING ENDURANCE THAN THE SHEET ITSELF AND YET RETAINING SUBSTANTIALLY THE SAME COMPRESSIVE CHARACTERISTICS AS THE SHEET ITSELF.
Claim 2
Dependent Claim
76 words
A SANDWICH COMPRISING A SHEET AND FILM, SAID SHEET BEING A CUT SHEET OF EXPANDED POLYSTRENE BEADS BONDED TOGETHER, SAID FLIM BEING BONDED TO ONE FACE OF THE SHEET, SAID FILM HAVING A TENSILE STRENGTH AT LEAST TEN TIMES GREATER THAN THE BONDING STRENGTH BETWEEN THE BEADS, AND SAID SANDWICH BEING FLEXIBLE AND HAVING GREATER TEARING STRENGTH AND FOLDING ENDURANCE THAN THE SHEET ITSELF AND YET RETAINING SUBSTANTIALLY THE SAME COMPRESSIVE CHARACTERISTICS AS THE SHEET ITSELF.
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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) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |