US3021246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing a structure of fiber reinforced plastic material
Assignee: Individual
•
Filing: 1958-04-24
•
Granted: 1962-02-13
•
Expires: 1978-04-24
Abstract
No abstract record available.
Inventors
- 👤 Hutter Ulrich
- 👤 Hanle Eugen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:31
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/26; F04D29/32; F04D29/38; F04D29/388; B; B29; B29C; B29C70/00; B29C70/04; B29C70/28; B29D; B29D99/00; B29D99/0025; B64; B64C; B64C11/00; B64C11/16; B64C11/20; B64C11/26; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
PROCESS FOR THE PRODUCTION OF FIBRE-REINFORCED SHELLS OR PLATES OF PLASTIC MATERIAL, WHICH COMPRISES IMPREGNATING A PLURALITY OF SEPARATE BUNDLES OF UNCONNECTED FIBRES WITH A PLASTIC POLYMERIZABLE BINDER WHICH IS PLASTIC AT ROOM TEMPERATURE, FORMING SAID IMPREGNATED BUNDLES SEPARATELY INTO STRIPS OF CONSTANT CROSS-SECTIONAL AREA BUT VARYING CROSS-SECTIONAL SHAPE, LAYING THEREAFTER SAID IMPRAEGNATED BUNDLES IN CONTACTING SIDE-BY-SIDE RELATION ON A MOLD FORM SURFACE WITH THE FIBRES EXTENDING IN THE DIRECTION OF THE PRINCIPAL STRESS, AND THEREAFTEAR POLYMERIZING THE BINDER.
Claim 2
Dependent Claim
79 words
PROCESS FOR THE PRODUCTION OF FIBRE-REINFORCED SHELLS OR PLATES OF PLASTIC MATERIAL, WHICH COMPRISES IMPREGNATING A PLURALITY OF SEPARATE BUNDLES OF UNCONNECTED FIBRES WITH A PLASTIC POLYMERIZABLE BINDER WHICH IS PLASTIC AT ROOM TEMPERATURE, FORMING SAID IMPREGNATED BUNDLES SEPARATELY INTO STRIPS OF CONSTANT CROSS-SECTIONAL AREA BUT VARYING CROSS-SECTIONAL SHAPE, LAYING THEREAFTER SAID IMPRAEGNATED BUNDLES IN CONTACTING SIDE-BY-SIDE RELATION ON A MOLD FORM SURFACE WITH THE FIBRES EXTENDING IN THE DIRECTION OF THE PRINCIPAL STRESS, AND THEREAFTEAR POLYMERIZING THE BINDER.
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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) | 1965-02-12 | 1965-08-14 | 1966-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-12 | 1969-08-14 | 1970-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-12 | 1973-08-14 | 1974-02-13 | $7700.00 | Window Closed / Lapsed |