Patent US3575779A successfully refreshed from Google Patents.
US3575779A
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Membranes and laminates of chlorinated linear polyethylene
Assignee: Honeywell International Inc
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Filing: 1967-06-21
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Granted: 1971-04-20
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Expires: 1987-06-21
Abstract
Abstract NOVEL PLASTIC MEMBRANES AND MEMBRANE LAMINATES USEFUL IN ONE-PLY ROOFING SYSTEMS AND IN SIMILAR APPLICATIONS MAY BE PREPARED FROM CHLORINATED LINEAR POLYETHYLENE PLUS FILLER, STABILIZER AND PIGMENT. THE CHLORINATED LINEAR POLYETHYLENE COMPRISES A MIXTURE OF TWO LINEAR POLYETHYLENES OF DIFFERENT COMPOSITIONS AND THE STABILIZER IS A MIXTURE OF 3,4 EPOXY-6-METHYLCYCLOHEXYLMETHYL 1-3, 4-EPOXY-6-METHYLCYCLOHEXANECARBOXYLATE; 2-6DITERT-BUTYL-4-METHYLPHENOL, AND AN ALCOHOL SELECTED FROM THE GROUP CINSISTING ESSENTIALLY OF SORBITOL, PENTAERYTHRITOL AND MIXTURES THEREOF
Inventors
- 👤 Wilbur F Chapman
- 👤 Charles J Klasen
- 👤 James J Malone Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:17
CPC Classifications
E; E04; E04D; E04D5/00; E04D5/06; B; B32; B32B; B32B27/00; C; C08; C08L; C08L23/00; C08L23/26; C08L23/28; C08L23/286; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31652; Y10T428/31815; Y10T442/00; Y10T442/10; Y10T442/102; Y10T442/133; Y10T442/145; Y10T442/148
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1974-04-19 | 1974-10-19 | 1975-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-19 | 1978-10-19 | 1979-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-19 | 1982-10-19 | 1983-04-20 | $7700.00 | Window Closed / Lapsed |