US3402874A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container closure
Assignee: WR Grace and Co
•
Filing: 1964-05-12
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Granted: 1968-09-24
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Expires: 1984-05-12
Abstract
No abstract record available.
Inventors
- 👤 Martin M Sternau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:10
CPC Classifications
B; B29; B29C; B29C61/00; B29C61/06; B29C61/0608; B29C61/0616; B29C43/00; B29C43/32; B29C43/36; B29C43/361; B29C65/00; B29C65/66; B29C66/00; B29C66/50; B29C66/51; B29C66/54; B29C66/542; B29C66/545; B29C66/70; B29C66/72; B29C66/723; B29C66/7234; B29C66/73; B29C66/737; B29C66/7371; B29C66/73711; B29C66/73713; B29C66/73715; B65; B65B; B65B53/00; B65B53/02; B65D; B65D7/00; B65D7/12; B65D7/34; B65D7/36; B29C2043/3615; B29C2043/3618; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/53; B29C66/534; B29C66/5346; B29C66/53461; B29C66/7232; B29C66/72321; B29C66/72324; B29C66/72326; B29C66/72327; B29C66/72328; B29C66/80; B29C66/83; B29C66/832; B29C66/8322; B29L; B29L2031/00; B29L2031/56; B29L2031/565; B29L2031/709; B29L2031/7096
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A CLOSURE FOR A CONTAINER COMPRISING A PIECE OF PARTIALLY HEAT SHRINKABLE THIN FILM MATERIAL, A CENTRAL PORTION OF SAID PIECE OF MATERIAL HAVING A FIRST SHRINKABLE CONDITION AND ADAPTED TO EXTEND OVER THE OPEN MOUTH OF THE CONTAINER, AND A RIM PORTION OF SAID PIECE OF MATERIAL HAVING A SECOND SHRINKABLE CONDITION AND ADAPTED TO EXTEND OVER THE RIM OF THE CONTAINER AND HOLD THE CLOSURE ON THE CONTAINER, SAID CENTRAL PORTION BEING MORE SHRINKABLE THAN SAID RIM PORTION.
Claim 2
Dependent Claim
80 words
A CLOSURE FOR A CONTAINER COMPRISING A PIECE OF PARTIALLY HEAT SHRINKABLE THIN FILM MATERIAL, A CENTRAL PORTION OF SAID PIECE OF MATERIAL HAVING A FIRST SHRINKABLE CONDITION AND ADAPTED TO EXTEND OVER THE OPEN MOUTH OF THE CONTAINER, AND A RIM PORTION OF SAID PIECE OF MATERIAL HAVING A SECOND SHRINKABLE CONDITION AND ADAPTED TO EXTEND OVER THE RIM OF THE CONTAINER AND HOLD THE CLOSURE ON THE CONTAINER, SAID CENTRAL PORTION BEING MORE SHRINKABLE THAN SAID RIM PORTION.
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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) | 1971-09-24 | 1972-03-25 | 1972-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-24 | 1976-03-25 | 1976-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-24 | 1980-03-25 | 1980-09-24 | $7700.00 | Window Closed / Lapsed |