US3044920A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Repair of thermoplastic materials
Assignee: Dunlop Rubber Co Ltd
•
Filing: 1958-01-06
•
Granted: 1962-07-17
•
Expires: 1978-01-06
Abstract
No abstract record available.
Inventors
- 👤 Dewar Douglas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:51
CPC Classifications
B; B29; B29C; B29C73/00; B29C65/00; B29C65/02; B29C65/04; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/47; B29C66/474; B29C66/70; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29C66/80; B29C66/81; B29C66/812; B29C66/8126; B29C66/81262; B29C66/81263; B29C66/818; B29C66/8187; B29C66/81871; B29C66/82; B29C66/822; B29C66/8221; B29C66/83; B29C66/836
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A METHOD OF REPAIRING A TEAR, PUNCTURE, OR THE LIKE IN THERMOPLATIC MATERIAL, COMPRISING THE STEPS OF CUTTING SAID MATERIAL AROUND THE DAMAGED PORTION THEREOF TO FORM AN APERTURE, APPLYING TO SAID MATERIAL ABOUT SAID APERTURE AN ANNULAR MARGIN OF A PATCH OF THERMOPLASTIC MATERIAL HAVING AN IMPERFORATE SHEET SEALED TO THE OUTER PERIPHERY OF SAID ANNULAR MARGIN WITH THE INNER TPERIPHERY OF SAID ANNULAR MARGIN LYING ADJACENT THE PERIPHERY OF SAID APETURE, HEATING SAID ANNULAR MARGIN AND THE AREA
Claim 2
Independent Claim
80 words
A METHOD OF REPAIRING A TEAR, PUNCTURE, OR THE LIKE IN THERMOPLATIC MATERIAL, COMPRISING THE STEPS OF CUTTING SAID MATERIAL AROUND THE DAMAGED PORTION THEREOF TO FORM AN APERTURE, APPLYING TO SAID MATERIAL ABOUT SAID APERTURE AN ANNULAR MARGIN OF A PATCH OF THERMOPLASTIC MATERIAL HAVING AN IMPERFORATE SHEET SEALED TO THE OUTER PERIPHERY OF SAID ANNULAR MARGIN WITH THE INNER TPERIPHERY OF SAID ANNULAR MARGIN LYING ADJACENT THE PERIPHERY OF SAID APETURE, HEATING SAID ANNULAR MARGIN AND THE AREA
References Cited (Backward Citations)
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Cited
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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) | 1965-07-16 | 1966-01-15 | 1966-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-16 | 1970-01-15 | 1970-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-16 | 1974-01-15 | 1974-07-17 | $7700.00 | Window Closed / Lapsed |