US2762737A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacture of expanders
Assignee: —
•
Filing: —
•
Granted: 1956-09-11
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Expires: 1973-09-11
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:33
CPC Classifications
—
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
85 words
THE METHOD OF MAKING A BRAKE EXPANDER TUBE WHICH COMPRISES PROVIDING AN ENDLESS ANNULAR SOLID RING-LIKE CORE OF RUBBER-LIKE MATERIAL TREATED TO RENDER THE SURFACE THEREOF RESISTANT TO ADHERENCE TO RUBBER, FOLDING A SHEET OF UNVULCANIZED RUBBER-LIKE MATERIAL CIRCUMFERENTIALLY AROUND SAID CORE TO FORM AN ENDLESS ANNULAR FLUID-DISTENSIBLE TUBE ENCLOSING AND SNUGLY EMBRACING SAID CORE ALONG ITS COMPLETE LENGTH, AND THEN VULCANIZING THE RESULTING ASSEMBLY OF SAID TUBE AND SAID CORE TO CONFORM THE INTERIOR SURFACE OF SAID TUBE TO THE SHAPE OF SAID CORE.
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) | 1959-09-11 | 1960-03-12 | 1960-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-11 | 1964-03-12 | 1964-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-11 | 1968-03-12 | 1968-09-11 | $7700.00 | Window Closed / Lapsed |