Patent US2873227A successfully refreshed from Google Patents.
US2873227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making resin-lined rubber containers
Assignee: Uniroyal Inc
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Filing: 1955-03-21
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Granted: 1959-02-10
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Expires: 1975-03-21
Abstract
No abstract record available.
Inventors
- 👤 Mark W Olson
- 👤 Fournier Valmar
- 👤 Ira D Dobbs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:53
CPC Classifications
B; B29; B29D; B29D22/00; B29D22/003; B29C; B29C51/00; B29C51/14; B65; B65D; B65D85/00; B65D85/70; B65D85/84; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1028; Y10T156/103; Y10T156/1043; Y10T156/1044; Y10T156/1048; Y10T156/1052; Y10T156/108
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A METHOD OF MAKING A FIRMLY ADHERED LAMINATE OF POLYETHYLENE AND RUBBER OF A DESIRED SHAPE COMPRISING THE STEPS OF FIRST FORMING A LAMINATE OF SAID POLYETHYLENE WITH A LAYER OF VULCANIZABLE RUBBER, HEATING THE LAMINATE TO A TEMPERATURE IN EXCESS OF THE SOFTENING TEMPERATURE OF THE POLYETHLENE, THEREAFTER VACUUM DRAWING THE HEATED LAMINATE TO THE DESIRED SHAPE, THE VULCANIZED RUBBER LAYER OF THE LAMINATE SERVING TO KEEP THE POLYETHYLENE FROM RUPTURING, AND MAINTAING THE LAMINATE IN THE SAID SHAPE WHILE COOLING IT OT A FORM-SUSTAINING TEMPERATURE, THE POLYETHYLENE LAYER AFTER SAID COOLING SERVING TO MAINTAIN THE PREVIOUSLY VULCANIZED RUBBER LAYER IN THE SAID DESIRED SHAPE.
Claim 2
Independent Claim
106 words
A METHOD OF MAKING A FIRMLY ADHERED LAMINATE OF POLYETHYLENE AND RUBBER OF A DESIRED SHAPE COMPRISING THE STEPS OF FIRST FORMING A LAMINATE OF SAID POLYETHYLENE WITH A LAYER OF VULCANIZABLE RUBBER, HEATING THE LAMINATE TO A TEMPERATURE IN EXCESS OF THE SOFTENING TEMPERATURE OF THE POLYETHLENE, THEREAFTER VACUUM DRAWING THE HEATED LAMINATE TO THE DESIRED SHAPE, THE VULCANIZED RUBBER LAYER OF THE LAMINATE SERVING TO KEEP THE POLYETHYLENE FROM RUPTURING, AND MAINTAING THE LAMINATE IN THE SAID SHAPE WHILE COOLING IT OT A FORM-SUSTAINING TEMPERATURE, THE POLYETHYLENE LAYER AFTER SAID COOLING SERVING TO MAINTAIN THE PREVIOUSLY VULCANIZED RUBBER LAYER IN THE SAID DESIRED SHAPE.
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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) | 1962-02-09 | 1962-08-11 | 1963-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-09 | 1966-08-11 | 1967-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-09 | 1970-08-11 | 1971-02-10 | $7700.00 | Window Closed / Lapsed |