Patent US2941918A successfully refreshed from Google Patents.
US2941918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel polymeric products and process
Assignee: Curtiss Wright Corp
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Filing: 1957-06-12
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Granted: 1960-06-21
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Expires: 1977-06-12
Abstract
No abstract record available.
Inventors
- 👤 Charles P West
- 👤 Feiler Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:57
CPC Classifications
C; C08; C08G; C08G8/00; C08G8/28; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31627; Y10T428/31678; Y10T428/31688; Y10T442/00; Y10T442/30; Y10T442/3472; Y10T442/3528; Y10T442/3569; Y10T442/3577
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
53 words
A RESINOUS COMPOSITION HAVING EXCELLENT STRENGTH CHARACTERISTICS, PARTICULARLY AT ELEVATED TEMPERATURES, COMPRISING THE CONDENSATION PRODUCT OF A PHENOLIC-ALDEHYDE RESOLE RESIN WITH A ZIRCONIUM ALKOXIDE, SAID PHENOL BEING A MOLECULAR PHENOL UNSUBSTITUTED IN A POSITION PARA AND AT LEAST ONE POSITION ORTHO TO A HYDROXYL GROUP, SAID ALDEHYDE CONTAINING UP TO 6 CARBON ATOMS.
Claim 2
Dependent Claim
53 words
A RESINOUS COMPOSITION HAVING EXCELLENT STRENGTH CHARACTERISTICS, PARTICULARLY AT ELEVATED TEMPERATURES, COMPRISING THE CONDENSATION PRODUCT OF A PHENOLIC-ALDEHYDE RESOLE RESIN WITH A ZIRCONIUM ALKOXIDE, SAID PHENOL BEING A MOLECULAR PHENOL UNSUBSTITUTED IN A POSITION PARA AND AT LEAST ONE POSITION ORTHO TO A HYDROXYL GROUP, SAID ALDEHYDE CONTAINING UP TO 6 CARBON ATOMS.
Claim 3
Dependent Claim
80 words
A PROCESS OF PRODUCING A REINFORCED RESINOUS LAMINATE HAVING EXCELLENT STRENGTH CHARACTERISTICS, PARTICULARLY AT ELEVATED TEMPERATURES, WHICH COMPRISES IMPREGNATING PLIES OF A WEB REINFORCING STRUCTURE WITH A MIXTURE OF A PHENOLIC-ALDEHYDE RESOLE RESIN AND A ZICRONIUM ALKOXIDE HAVING PRESENT A POLYFUNCTIONAL CHELATING AGENT CAPABLE OF INHABITING THE CONDENSATION BETWEEN THE RESOLE RESIN AND THE ZIRCONIUM ALOXIDE, PRECURING THE PLIES AND FINALLY CURING THE JAMINATE AT AN ELEVATED TEMPERATURE UNDER CONDITIONS WHICH REMOVE THE POLYFUNCTIONAL CHELATING AGENT FROM THE FINAL PRODUCT.
Claim 4
Dependent Claim
80 words
A PROCESS OF PRODUCING A REINFORCED RESINOUS LAMINATE HAVING EXCELLENT STRENGTH CHARACTERISTICS, PARTICULARLY AT ELEVATED TEMPERATURES, WHICH COMPRISES IMPREGNATING PLIES OF A WEB REINFORCING STRUCTURE WITH A MIXTURE OF A PHENOLIC-ALDEHYDE RESOLE RESIN AND A ZICRONIUM ALKOXIDE HAVING PRESENT A POLYFUNCTIONAL CHELATING AGENT CAPABLE OF INHABITING THE CONDENSATION BETWEEN THE RESOLE RESIN AND THE ZIRCONIUM ALOXIDE, PRECURING THE PLIES AND FINALLY CURING THE JAMINATE AT AN ELEVATED TEMPERATURE UNDER CONDITIONS WHICH REMOVE THE POLYFUNCTIONAL CHELATING AGENT FROM THE FINAL PRODUCT.
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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) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |