US3335897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closure and method of forming same
Assignee: Continental Can Co Inc
•
Filing: 1964-05-05
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Granted: 1967-08-15
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Expires: 1984-05-05
Abstract
No abstract record available.
Inventors
- 👤 Anthony J Castro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:29
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/02; B29C44/022; B29L; B29L2031/00; B29L2031/56
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
A CLOSURE COMPRISING A WALL PORTION, OPENING MEANS IN SAID PORTION, AND MEANS FOAMED IN SITU ON SAID PORTION CLOSING SAID OPENING MEANS TO LIQUID AND PERMITTING THE PASSAGE OF GAS THERETHROUGH.
Claim 2
Dependent Claim
32 words
A CLOSURE COMPRISING A WALL PORTION, OPENING MEANS IN SAID PORTION, AND MEANS FOAMED IN SITU ON SAID PORTION CLOSING SAID OPENING MEANS TO LIQUID AND PERMITTING THE PASSAGE OF GAS THERETHROUGH.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-14 | 1971-02-13 | 1971-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-14 | 1975-02-13 | 1975-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-14 | 1979-02-13 | 1979-08-15 | $7700.00 | Window Closed / Lapsed |