US3183144A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making polyethylene seals
Assignee: Hoosier Crown Corp
•
Filing: 1961-05-03
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Granted: 1965-05-11
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Expires: 1981-05-03
Abstract
No abstract record available.
Inventors
- 👤 Enzo P Caviglia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:19
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/10; C09K2003/1084; C09K2200/00; C09K2200/06; C09K2200/0615; C09K2200/0617; C09K2200/062; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1062; Y10T156/107; Y10T156/1072; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/31909; Y10T428/31913
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
43 words
A LAMINATE COMPRISING A METAL BODY HAVING A COATING A SANITARY LACQUER ON SURFACE PORTIONS THEREOF, A COATING OF POLYETHYLENE OVER SAID LACQUER COATING, SAID POLYETHYLENE COATING BEING HEAT-TREATED AT ABOUT 350*F. TO ABOUT 420*F. FOR FROM ABOUT 3 MINUTES TO ABOUT HALF
References Cited (Backward Citations)
US2238681A
Cited
US2697058A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-10 | 1968-11-09 | 1969-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-10 | 1972-11-09 | 1973-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-10 | 1976-11-09 | 1977-05-11 | $7700.00 | Window Closed / Lapsed |