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US3629360A
Expired / Lapsed
US
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Copolyester/phenol-modified coumarone-indene blend compositions
Assignee: Whittaker Corp
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Filing: 1969-04-25
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Granted: 1971-12-21
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Expires: 1989-04-25
Abstract
Abstract BLENDS OF COPOLYESTER AND PHENOL-MODIFIED COUMARONEINDENE RESINS HAVING ABOUT 20 TO 85 PERCENT BY WEIGHT COPOLYESTER, BASED ON TOTAL COMBINED WEIGHT OF COPOLYESTER AND PHENOL-MODIFIED COUMARONE-INDENE, ARE PROVIDED FOR USE AS ADHESIVE COMPOSITIONS, FILMS, MAGNETIC TAPE BINDERS, STAPLE CEMENTS AND COATINGS.
Inventors
- 👤 Dean C Burkhart
- 👤 Lee R Conrad
- 👤 John B Stokes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:31
CPC Classifications
C; C08; C08L; C08L67/00; C08L67/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-20 | 1975-06-21 | 1975-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-20 | 1979-06-21 | 1979-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-20 | 1983-06-21 | 1983-12-21 | $7700.00 | Window Closed / Lapsed |