US3046180A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making laminates using unsaturated polyesters
Assignee: Tru-Scale Inc
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Filing: 1955-08-12
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Granted: 1962-07-24
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Expires: 1975-08-12
Abstract
No abstract record available.
Inventors
- 👤 John M Diehl
- 👤 Luther L Yaeger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:37
CPC Classifications
B; B29; B29C; B29C70/00; B32; B32B; B32B27/00; B29K; B29K2309/00; B29K2309/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
THE METHOD OF MAKING A POLYESTER ARTICLE DEVOID OF ANY IDENTIFIABLE BOND LINES COMPRISING THE STEPS OF SUBJECTING TO CURING CONDITIONS AN ARTICLE COMPRISING AN UNSATURATED POLYESTER SYNTHETIC RESIN NORMALLY ADAPTED TO REQUIRE CURING IN THE ABSENCE OF AIR, AND REINFORCED WITH GLASS FIBERS WHICH ARE STRAIGHTENED AND PARALLEL, WHILE EXPOSING ONE SURFACE OF THE ARTICLE TO THE PRESENCE OF AIR, THEN DISPOSING AGAINST THE AIR EXPOSED SURFACE A SECOND LAYER OF UNCURED, UNSATURATED POLYESTER RESIN NORMALLY ADAPTED TO REQUIRE CURING IN THE ABSENCE OF AIR, SUBJECTING TO CURING CONDITIONS A SECOND ARTICLE COMPRISING AN UNSATURATED POLYESTER SYNTHETIC RESIN NORMALLY ADAPTED TO REQUIRE CURING IN THE ABSENCE OF AIR, WHILE EXPOSING ONE SURFACE OF THE SECOND ARTICLE TO THE PRESENCE OF AIR, THEN DISPOSING AGAINST THE SECOND LAYER OF UNCURED RESIN THE EXPOSED SURFACE OF THE SECOND ARTICLE, SUBJECTING THE RESULTING ASSEMBLY TO CURING CONDITIONS IN THE ABSENCE OF AIR TO CURE THE ASSEMBLY OF THE UNSATURATED POLYESTER SYNTHETIC RESIN.
Claim 2
Independent Claim
160 words
THE METHOD OF MAKING A POLYESTER ARTICLE DEVOID OF ANY IDENTIFIABLE BOND LINES COMPRISING THE STEPS OF SUBJECTING TO CURING CONDITIONS AN ARTICLE COMPRISING AN UNSATURATED POLYESTER SYNTHETIC RESIN NORMALLY ADAPTED TO REQUIRE CURING IN THE ABSENCE OF AIR, AND REINFORCED WITH GLASS FIBERS WHICH ARE STRAIGHTENED AND PARALLEL, WHILE EXPOSING ONE SURFACE OF THE ARTICLE TO THE PRESENCE OF AIR, THEN DISPOSING AGAINST THE AIR EXPOSED SURFACE A SECOND LAYER OF UNCURED, UNSATURATED POLYESTER RESIN NORMALLY ADAPTED TO REQUIRE CURING IN THE ABSENCE OF AIR, SUBJECTING TO CURING CONDITIONS A SECOND ARTICLE COMPRISING AN UNSATURATED POLYESTER SYNTHETIC RESIN NORMALLY ADAPTED TO REQUIRE CURING IN THE ABSENCE OF AIR, WHILE EXPOSING ONE SURFACE OF THE SECOND ARTICLE TO THE PRESENCE OF AIR, THEN DISPOSING AGAINST THE SECOND LAYER OF UNCURED RESIN THE EXPOSED SURFACE OF THE SECOND ARTICLE, SUBJECTING THE RESULTING ASSEMBLY TO CURING CONDITIONS IN THE ABSENCE OF AIR TO CURE THE ASSEMBLY OF THE UNSATURATED POLYESTER SYNTHETIC RESIN.
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) | 1965-07-23 | 1966-01-22 | 1966-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-23 | 1970-01-22 | 1970-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-23 | 1974-01-22 | 1974-07-24 | $7700.00 | Window Closed / Lapsed |