US2550206A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of rubber articles
Assignee: Eastern Rubber Specialties
•
Filing: 1947-11-18
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Granted: 1951-04-24
•
Expires: 1967-11-18
Abstract
No abstract record available.
Inventors
- 👤 Rebecca O Teston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:26
CPC Classifications
B; B29; B29C; B29C41/00; B29C41/02; B29C41/14; B29K; B29K2021/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
THE PROCESS OF FORMING HOLLOW RUBBER ARTICLES THAT COMPRISES DIPPING A MOLD IN A CARNAUBA WAX EMULSION TO FORM A GAS IMPERVIOUS LAYER ON SAID MOLD, APPLYING A COAGULANT TO THE WAX COATED FORM, SUBJECTING THE FORM TO CONTACT WITH A DISPERSION OF LATEX TO BUILD UP THE THICKNESS OF THE RUBBER COATING ON THE FORM, DRYING THE SAID RUBBER COATING, AND THEN SLIDING THE SAID RUBBER COATING OFF THE WAX COATED MOLD.
Claim 2
Dependent Claim
73 words
THE PROCESS OF FORMING HOLLOW RUBBER ARTICLES THAT COMPRISES DIPPING A MOLD IN A CARNAUBA WAX EMULSION TO FORM A GAS IMPERVIOUS LAYER ON SAID MOLD, APPLYING A COAGULANT TO THE WAX COATED FORM, SUBJECTING THE FORM TO CONTACT WITH A DISPERSION OF LATEX TO BUILD UP THE THICKNESS OF THE RUBBER COATING ON THE FORM, DRYING THE SAID RUBBER COATING, AND THEN SLIDING THE SAID RUBBER COATING OFF THE WAX COATED MOLD.
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) | 1954-04-23 | 1954-10-23 | 1955-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-23 | 1958-10-23 | 1959-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-23 | 1962-10-23 | 1963-04-24 | $7700.00 | Window Closed / Lapsed |