Patent US6585730B1 successfully refreshed from Google Patents.
US3074832A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic window plate structure and method of making same
Assignee: Flachglas Wernberg GmbH
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Filing: 1957-12-04
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Granted: 1963-01-22
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Expires: 1977-12-04
Abstract
No abstract record available.
Inventors
- 👤 Graff Roderich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:18
CPC Classifications
B; B29; B29C; B29C70/00; B29K; B29K2309/00; B29K2309/08; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1034
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
114 words
A PROCESS FOR THE PRODUCTION OF A LIGHTWEIGHT AND RIGID WINDOW PANEL PLATE COMPRISING AT LEAST ONE OPENING IN A FLAT FRAME WITH AT LEAST THE MARGINAL FRAME AREA SURROUNDING SAID OPENING BEING DISPOSED IN A SINGLE PLANE, THE STEPS OF APPLYING TO SAID FRAME TO COVER SAID OPENING AT LEAST ONE RELATIVELY THIN SHEET OF GLASS FIBER IMPREGNATED WITH A THERMOSETTING SYNTHETIC RESING PLASTIC MATERIAL WHILE SAID PLASTIC MATERIAL IS IN A STATE OF INCOMPLETE CORING, CURING SAID PLASTIC MATERIAL WITH SAID SHEET N SITU TO BOND THE SHEET TO SAID FRAME, AND PERMITTING SAID SHEET TO SHRINK AND BE DRAWN TIGHTLY OVER SAID OPENING UPON COMPLETE POLYMERIZATION OF SAID RESIN PLASTIC MATERIAL.
Claim 2
Dependent Claim
114 words
A PROCESS FOR THE PRODUCTION OF A LIGHTWEIGHT AND RIGID WINDOW PANEL PLATE COMPRISING AT LEAST ONE OPENING IN A FLAT FRAME WITH AT LEAST THE MARGINAL FRAME AREA SURROUNDING SAID OPENING BEING DISPOSED IN A SINGLE PLANE, THE STEPS OF APPLYING TO SAID FRAME TO COVER SAID OPENING AT LEAST ONE RELATIVELY THIN SHEET OF GLASS FIBER IMPREGNATED WITH A THERMOSETTING SYNTHETIC RESING PLASTIC MATERIAL WHILE SAID PLASTIC MATERIAL IS IN A STATE OF INCOMPLETE CORING, CURING SAID PLASTIC MATERIAL WITH SAID SHEET N SITU TO BOND THE SHEET TO SAID FRAME, AND PERMITTING SAID SHEET TO SHRINK AND BE DRAWN TIGHTLY OVER SAID OPENING UPON COMPLETE POLYMERIZATION OF SAID RESIN PLASTIC MATERIAL.
Claim 3
Dependent Claim
59 words
THE PROCESS OF CLAIM 1 IN WHICH A CURED SHEET OF SAID PLASTIC IS CONNECTED TO ONE SIDE OF SAID FRAME AND IN WHICH A FURTHER SHEET OF SAID PLASTIC MATERIAL IN AN INCOMPLETE STATE OF CURING IS APPLIED TO THE OTHER SIDE OF SAID FRAME AND FINALLY CURED AND BONDED ONTO SAID FRAME AND TO SAID CURED SHEET.
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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) | 1966-01-21 | 1966-07-23 | 1967-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-21 | 1970-07-23 | 1971-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-21 | 1974-07-23 | 1975-01-22 | $7700.00 | Window Closed / Lapsed |