US2794760A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making fiber-reinforced plastic parts
Assignee: Sturgis Posture Chair Co
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Filing: 1953-06-10
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Granted: 1957-06-04
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Expires: 1973-06-10
Abstract
No abstract record available.
Inventors
- 👤 Wilson James Harrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:51
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/04; B29C70/28; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249924; Y10T428/24994
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
116 words
THE METHOD OF MAKING A MOLDED BASE SUPPORTING MEMBER, FOR A SWIVEL CHAIR, OF SYNTHETIC RESIN REINFORCED WITH GLASS FIBERS, AND HAVING AN ABRASION CAMOUFLALGING SURFACE, COMPRISING FORMING A MASS OF GLASS FIBERS INTO THE DESIRED SHAPE FOR THE BASE SUPPORTING MEMBER, INCORPORATING A BINDER IN SAID MASS OF FIBERS, WHEREBY THE FIBERS IN THE PREFORM ARE TEMPORARILY ADHERED IN SHAPE BY THE BINDER MATERIAL, APPLYING A WATER-SOLUBLE COATING RESIN, CHARACTERIZED BY ITS REINOPHOBIC PROPERTIES AFTER SETTING, TO COAT THE SURFACE FIBERS ONLY OF SAID SHAPED MASS, SETTING SAID BINDER AND RESINOPHOBIC COATING RESIN, THEN IMPREGNATING THE SHAPED MASS OF GLASS FIBERS WITH A MOLDING RESIN, AND CURING THE THUS REINFORCED MOLDING RESIN IN A MOLD.
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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) | 1960-06-03 | 1960-12-03 | 1961-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-03 | 1964-12-03 | 1965-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-03 | 1968-12-03 | 1969-06-04 | $7700.00 | Window Closed / Lapsed |