US2885105A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preformed shrinkable closures for containers
Assignee: WR Grace and Co
•
Filing: 1955-08-30
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Granted: 1959-05-05
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Expires: 1975-08-30
Abstract
No abstract record available.
Inventors
- 👤 Edgar G Heyl
- 👤 Joseph J Hitov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:28
CPC Classifications
B; B29; B29C; B29C61/00; B29C61/06; B29C65/00; B29C65/02; B29C65/18; B29C65/66; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/50; B29C66/51; B29C66/54; B29C66/542; B29C66/70; B29C66/72; B29C66/723; B29C66/73; B29C66/737; B29C66/7371; B29C66/73711; B29C66/73715; B29C66/80; B29C66/83; B29C66/832; B29C66/8322; B65; B65D; B65D41/00; B65D41/02; B65D41/24; B29C66/71; B29C66/7234; B29C66/72341; B29C66/73713; B29K; B29K2067/00; B29L; B29L2031/00; B29L2031/56; B29L2031/565; Y; Y10; Y10S; Y10S174/00; Y10S174/08; Y10S206/00; Y10S206/819; Y10S264/00; Y10S264/78; Y10S425/00; Y10S425/809
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
60 words
A CLOSURE HAVING A CENTRAL PORTION AND A SKIRT FOR BOTTLES, JARS, CANS AND SIMILAR CONTAINERS, SAID CLOSURE BEING FORMED FROM A LINEAR CONDENSATION POLYMER, THE SKIRT OF SAID CLOSURE BEING IN A FORM OF SAID POLYMER WHICH IS HEAT SHRINKABLE AND THE CENTRAL PORTION OF SAID CLOSURE BEING IN A FORM OF SAID POLYMER WHICH IS SUBSTANTIALLY NON-HEAT SHRINKABLE.
References Cited (Backward Citations)
US1615504A
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US2072536A
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GB468762A
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US2338787A
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US2238681A
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US2447983A
Cited
US2497376A
Cited
US2669369A
Cited
US2679969A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-04 | 1962-11-03 | 1963-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-04 | 1966-11-03 | 1967-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-04 | 1970-11-03 | 1971-05-05 | $7700.00 | Window Closed / Lapsed |